View source for American Top 40

{{Short description|Radio countdown series}}
{{Use mdy dates|date=September 2022}}
{{Infobox radio show
| show_name = ''American Top 40''
| image = American Top 40 (2021) logo.svg
| imagesize = 280px
| caption = ''American Top 40'' logo 2021–present.
| other_names = AT40
| format = Music chart show, talk
| runtime = 4 hrs. (including commercials)<br /> 3 hrs. + 15 min. (w/out commercials)
| creator = [[Casey Kasem]], [[Don Bustany]], [[Tom Rounds]] and [[Ron Jacobs (broadcaster)|Ron Jacobs]]
| writer = 
| executive_producer = 
| producer = {{ubl
| Easton Allyn & Jennifer Sawalha (Present)
| Nikki Wine (1970s)
| Don Bustany (1970s, 1979–1987)
| Lorre Crimi (1998–2004)
}}
| presenter = {{ubl
| [[Ryan Seacrest]] (2004–present)
| [[Casey Kasem]] (1970–1988, 1998–2004)
| [[Shadoe Stevens]] (1988–1995)
| See also {{section link||Substitute hosts and guest co-hosts}}
}}
| starring = 
| announcer = Miles Hlivko
| opentheme = 
| endtheme = 
| country = United States
| language = English
| first_aired = July 4, 1970
| last_aired = present<br />''(hiatus January 28, 1995 – March 28, 1998)''
| website = {{URL|https://www.americantop40.com/}}
| home_station = {{ubl
| [[KIIS-FM]] (Los Angeles)
| [[WHTZ]] (New York City)
}}
| syndicates = [[Premiere Networks]], [[Radio Express]]
}}
'''''American Top 40''''' (abbreviated to '''''AT40''''') is an internationally [[radio syndication|syndicated]], independent song countdown [[radio programming|radio program]] created by [[Casey Kasem]], [[Don Bustany]], [[Tom Rounds]], and [[Ron Jacobs (broadcaster)|Ron Jacobs]]. The program is currently hosted by [[Ryan Seacrest]] and presented as an adjunct to his weekday radio program, ''[[On Air with Ryan Seacrest]]''.

Originally a production of [[Watermark Inc.]] (later a division of ABC Radio known as [[ABC Watermark]], now [[Cumulus Media Networks]] which merged with [[Westwood One]]<ref>{{Cite web |last=Roose |first=Kevin |date=2011-08-01 |title=Westwood One and Dial Global to Merge |url=https://archive.nytimes.com/dealbook.nytimes.com/2011/08/01/westwood-one-and-dial-global-to-merge/ |access-date=2024-10-19 |website=DealBook |language=en}}</ref>), ''American Top 40'' is now distributed by [[Premiere Networks]] (a division of [[iHeartMedia]]). Nearly 500 radio stations in the United States, the [[Armed Forces Network]], and multiple other stations worldwide air ''American Top 40'', and the show streams through several venues, including iHeartMedia's own [[iHeartRadio]] app.

Co-creator Kasem hosted the original ''American Top 40'' from its inauguration on July 4, 1970, until August 6, 1988. [[Shadoe Stevens]] took over the program on August 13, 1988, and hosted until January 28, 1995, when the original program came to an end. Three years later, Kasem teamed up with Premiere's predecessor AMFM Radio Networks to relaunch ''American Top 40''. Kasem, who had spent nine years hosting his own countdown ''[[Casey's Top 40]]'' for Westwood One, returned to hosting his creation on March 28, 1998. Seacrest took over ''American Top 40'' on January 10, 2004, following Kasem's retirement from the series.

Currently, ''American Top 40'' with Seacrest airs in two formats, with one distributed to [[Contemporary hit radio|Contemporary Hit Radio]] (Top 40) stations and the other to [[Hot Adult Contemporary]] stations. However, there is no distinction made between the two shows on air. There are also two classic editions of the original ''American Top 40'' distributed every weekend, featuring past Kasem-hosted shows from the 1970s and 1980s.

In its early years, ''American Top 40'' used the ''[[Billboard (magazine)|Billboard]]'' charts to compile the countdown, touting it as "the only source". The program subsequently switched to being based on ''[[Radio and Records]]'' airplay data upon its late 1990s return,<ref>Durkee, p. 259.</ref> until R&R was folded into Billboard in 2009. The current source for the ''American Top 40'' charts are unpublished mainstream Top 40 and hot adult contemporary charts compiled by [[Mediabase]] (who had been the chart data supplier for ''Radio & Records'').

==History==

===1970–1988: First Casey Kasem era===
{{blockquote|text= Here we go with the Top 40 hits of the nation this week on ''American Top 40'', the best-selling and most-played songs from the [[Atlantic Ocean|Atlantic]] to the [[Pacific Ocean|Pacific]], from Canada to Mexico. This is [[Casey Kasem]] in Hollywood, and in the next three hours, we'll count down the 40 most popular hits in the United States this week, hot off the record charts of ''[[Billboard (magazine)|Billboard]]'' magazine for the week ending July 11, 1970. In this hour at No. 32 in the countdown, [[It's All in the Game (song)|a song that's been a hit 4 different times in 19 years]]! And we're just one tune away from [[Mark Lindsay|the singer with the $10,000 gold hubcaps on his car]]!<ref name="1st episode">{{cite web|url=http://www.oldradioshows.com/at40/070470.html|publisher=oldradioshows.com|title=Casey Kasem's American Top 40, 7/4/70: Debut Show|access-date=October 29, 2007| archive-url= https://web.archive.org/web/20071016234529/http://oldradioshows.com/at40/070470.html| archive-date= October 16, 2007 | url-status= live}}</ref><ref>Durkee, p. 65. The story here was that [[George Barris (auto customizer)|George Barris]] (designer of cars for TV and movies, including the [[Batmobile]]) added gold lacquer into the hubcaps' brass coating of Lindsay's [[Rolls-Royce Phantom V]].</ref> Now, on with the countdown! |author= Casey Kasem at the beginning of the inaugural ''AT40'' broadcast}}

''American Top 40'' began on the Independence Day weekend in 1970, on seven radio stations, the first being KDEO in [[El Cajon, California]] (now [[KECR]]), which broadcast the inaugural show the evening of July 3, 1970.<ref>Durkee, p. 53-54.</ref> ''Billboard'' reported prior to the release of the show that it had been sold to stations in 10 radio markets.<ref>[https://books.google.com/books?id=dykEAAAAMBAJ&dq=1970+%22casey+kasem%22&pg=PA3 "'American Top 40' Bows At Forum; On Air July 1"], ''Billboard'' magazine, June 20, 1970, p. 3</ref> Kasem was reportedly inspired by ''[[Make Believe Ballroom]]'', a radio show that was nationally syndicated in the 1940s and popularized the concept of a [[disc jockey]] playing current popular recorded music on the air.<ref name="billboard1">{{cite web |url=http://www.billboard.com/biz/articles/news/radio/6121454/casey-kasem-youve-truly-reached-the-stars |title=Casey Kasem, You've Truly Reached The Stars |publisher=Billboard |access-date=June 17, 2014 |archive-date=July 7, 2014 |archive-url=https://web.archive.org/web/20140707015704/http://www.billboard.com/biz/articles/news/radio/6121454/casey-kasem-youve-truly-reached-the-stars |url-status=dead }}</ref>

The chart data broadcast for the premiere show actually included the top 40 songs from the week ending July 11, 1970. The first show featured the last time both [[Elvis Presley]] and [[the Beatles]] had songs simultaneously in the Top 10.<ref>Durkee, p. 53.</ref> It was originally distributed by [[Watermark Inc.]], and was first presented in [[Monophonic sound|mono]] until February 24, 1973, when the first stereo vinyl copies were distributed.<ref name=":0" /> In early 1982, Watermark was purchased by [[Citadel Media|ABC Radio]] and ''AT40'' became a program of the "ABC Contemporary Radio Network".<!-- Merge in intro if possible --> The program was hosted by Kasem and co-created by Kasem; [[Don Bustany]], Kasem's childhood friend from Detroit, MI;<ref>{{cite news|url=https://www.reuters.com/article/us-people-caseykasem-idUSKBN0EQ0Q720140616|title=U.S. radio deejay, 'Shaggy' voice Casey Kasem dead at 82|newspaper=Reuters|date=June 16, 2014}}</ref> radio veteran [[Tom Rounds]]; and [[KHJ (AM)|93/KHJ]] Program Director Ron Jacobs, who produced and directed the various production elements. Rounds was also the marketing director; the initial funder was California strawberry grower [[Driscoll's|Tom Driscoll]].

The show began as a three-hour program written and directed by Bustany, counting down the top 40 songs on ''Billboard''<nowiki>'</nowiki>s [[Billboard Hot 100|Hot 100]] Singles chart. The show quickly gained popularity once it was commissioned, and expanded to a four-hour-program on October 7, 1978, to reflect the increasing average length of singles on ''Billboard''<nowiki>'</nowiki>s Hot 100 chart. The producing staff expanded to eight people, some of them still in the business: Nikki Wine, Ben Marichal, Scott Paton, Matt Wilson, Merrill Shindler, [[Guy Aoki]], Ronnie Allen, and Sandy Stert Benjamin. (Bustany retired from ''AT40'' in 1989; beginning in 1994, he hosted a political talk show on listener-sponsored [[KPFK]].) By the early 1980s, the show could be heard on 520 stations in the United States<ref>Durkee, p. 137.</ref> and at its zenith, the show was broadcast on 1,000-plus stations in some 50 countries. In the 1980s, it aired in the United Kingdom on [[Signal Radio]],<ref>''[[The Staffordshire Sentinel|Staffordshire Sentinel]]'' listings in the [[British Newspaper Archive]], 24 May 1986-21 February 1987</ref> [[DevonAir]],<ref>''[[Torquay Herald Express]]'' listings on [[Newspapers.com]], May 24-September 13, 1986</ref> [[Radio 210]],<ref>''[[Reading Evening Post]]'' listings in the BNA, 1 November 1986-7 April 1989, and ''Wokingham Times'' listings up to 22 June 1989</ref> [[County Sound]],<ref>''Aldershot News'' listings on Newspapers.com, January 16-December 24, 1987</ref> [[Heart Dunstable|Chiltern Radio]],<ref>''[[Cambridge Evening News]]'' listings in the BNA, 12 March 1988-12 May 1989</ref> [[Northants 96]],<ref>''[[Northampton Chronicle & Echo]]'' listings in the BNA, 6 January-12 May 1989</ref> [[TFM (radio station)|Radio Tees]],<ref>''[[The Journal (Newcastle upon Tyne newspaper)|The Journal]]'' listings in the BNA, April 19-December 27, 1986</ref> [[Saxon Radio]]<ref>''Cambridge Evening News'' listings, 2 August 1986-1 May 1987</ref> and [[Heart Oxfordshire|Fox FM]]<ref>''Reading Evening Post'' listings, 28 October-16 December 1989</ref> and was also transmitted on [[Manx Radio]].<ref>''[[Ellesmere Port Pioneer]]'' listings on newspapers.com, January 2–23, 1986</ref> Kasem told the New York Times in 1990 "I accentuate the positive and eliminate the negative. That is the timeless thing."<ref>{{cite news|url=http://ca.reuters.com/article/entertainmentNews/idCAKBN0EQ0Q720140615|archive-url=https://web.archive.org/web/20160304061417/http://ca.reuters.com/article/entertainmentNews/idCAKBN0EQ0Q720140615|url-status=dead|archive-date=March 4, 2016|title=U.S. radio deejay, 'Shaggy' voice Casey Kasem dead at 82|newspaper=Reuters|date=June 15, 2014}}</ref>

====Features of the Kasem-era shows====
During Kasem's run as host, the ''AT40'' show had a number of popular and distinguishing features, some of which Kasem had done for some time at such stations as [[KWVE (AM)#KRLA (1959–2000)|KRLA]] in Los Angeles:<ref>{{cite web|last1=Appel|first1=Rich|title=Casey Kasem, You've Truly Reached The Stars|url=http://www.billboard.com/biz/articles/news/radio/6121454/casey-kasem-youve-truly-reached-the-stars|website=Billboard.com|access-date=June 24, 2014|date=June 16, 2014}}</ref>

* Number jingles: Occasionally, a song was preceded by a brief audio clip of a group of singers announcing the song's position on the chart (e.g. "Number 40!"). This was especially common for the first song played in each hour of the show and often for the first song after a commercial break, but was usually not done for the number-one song (which was usually introduced with a drum roll), or for songs preceded by a story. The "number" jingles were updated and re-recorded from time to time, and by the mid-1980s, the show began using two sets of "number" jingles: the standard set, to be used with up-tempo songs; and a softer alternative set, usually used with low-key or romantic songs.
* Long Distance Dedication: This feature evolved from a spoken-word 45 single that Kasem had recorded in 1964, "Letter from Elaina", in which a girl wrote to Kasem about her encounter with the Beatles.<ref>Durkee, p. 90.</ref>

In a 2007 Valentine's Day special edition of ''American Top 10'' (and explained earlier in Rob Durkee's book ''American Top 40: The Countdown of the Century''),<ref>Durkee, p. 90-91.</ref> Kasem explained that the LDD feature was intended to be part of the show from the beginning. He knew, however, that it was going to take some time before a listener wrote in with a request and let the process proceed organically. Kasem's patience proved correct, as staffer Matt Wilson found such a letter while checking the show's mail in August 1978. The listener asked Kasem to play the song "[[Desiree (song)|Desiree]]" by [[Neil Diamond]], which he dedicated to his girlfriend of the same name who was moving to West Germany to live with her family on an Army base. The request was fulfilled on the weekend of August 26, 1978; when that show was rebroadcast the weekend of August 25–26, 2007, Kasem recorded two optional segments (played at the discretion of the station) in which he did phone interviews with the man and his former girlfriend about the LDD. Most shows featured two long distance dedications, usually with one during each half of the show. (Sometimes, a song currently in the countdown was requested as a LDD; in such cases, Kasem would typically read the dedication first, and sometimes not even announce the song's chart status until after the song was played.) This feature endured on ''AT40'' into Shadoe Stevens' run as host of the show, from 1988 to 1995, and also followed Kasem on his [[Westwood One (1976–2011)|Westwood One]] shows, first as "Request and Dedication", and then back to LDD when he returned to ''AT40'' in 1998. Long Distance Dedications were dropped after Ryan Seacrest became host in 2004, but they continued as part of Kasem's adult contemporary countdowns.
* Great Radio Stations: Once an hour, generally halfway into the hour, Kasem relayed three or four radio stations that carried ''AT40'', beginning each list with "''American Top 40'' is heard in the fifty states and around the world every week on great radio stations like ... ". In the first few years of the program, Kasem said "coast to coast" instead of "in the fifty states." One foreign ''AT40'' affiliate, or mention of [[American Forces Network|Armed Forces Radio]], was often included, usually as the last station in the list. In addition, new ''AT40'' affiliates were mentioned at the top of one of the hours (never the first hour). The multiple station mentions became a regular feature in 1972; prior to then, only one station was mentioned per hour. The first station mentioned on ''AT40'' was KMEN (now [[KKDD]]) in [[San Bernardino, California]], on the August 29, 1970, program.<ref>Durkee, p. 69, 86.</ref>
* Sign-off: After the number-one song was played, the bumper music began playing, and over that, Kasem typically reported that week's chart date and read the end credits, then signed off with what became his, and the show's, unofficial motto: ''"Keep your feet on the ground, and keep reaching for the stars."'' Beginning with the show of June 25, 1977, he usually added "and keep your radio tuned right where it is", as a way to help its affiliated stations improve listener loyalty;<ref name=":0">''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (pp.82). Bloomington, Indiana: Author House, 2004.</ref> this phrase would be retired in 1984, but returned to the show when the ''AT40'' brand name was revived in the late 1990s (Kasem had also used it on ''Casey's Top 40'' and its Adult Contemporary-format spinoffs). Guest hosts would be prohibited from using Kasem's sign-off, but still used the "keep your radio tuned right where it is" phrase when its usage was in effect. Even his sign-on and sign-off music became popular, as "[[Shuckatoom]]" (composed by [[James R. Kirk]]) became a highly requested song, although it was never used apart from the show; "Shuckatoom" was first used to close ''AT40'' with the "Top 40 Rock & Roll Acts of the 1950s" on October 4, 1975, and first used to open ''AT40'' on November 8, 1975.<ref>''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (p.157 & 159). Bloomington, Indiana: Author House, 2004.</ref>
* AT40 Archives: In the late 1970s and early 1980s, Kasem began a review of each number-one single of the 1970s played in chronological order at the rate of three per week spaced throughout the broadcast. When completed, he began a similar review of each number-one single of the 1960s.

===1988–1995: Shadoe Stevens era===
In 1988, Kasem left the show over contract concerns with ABC and signed with [[Westwood One (1976-2011)|Westwood One]] to host a competing weekly countdown. Industry trade paper ''Billboard'' magazine reported that the main disputes between Kasem and Watermark/ABC were over his salary (which Westwood One tripled upon his signing), because of declining ratings and a smaller group of stations airing the show. Kasem's final ''AT40'' show, the 940th in the series, aired on August 6, 1988. Kasem was replaced by [[Shadoe Stevens]], whose first ''American Top 40'' show aired on August 13, 1988, on 1,014 stations.<ref>Durkee, p. 189.</ref>

Later, Stevens and ''AT40'' lost a significant number of affiliates when, on January 21, 1989, Kasem's Westwood One show launched. The program, titled ''[[Casey's Top 40]]'', used the weekly chart survey published by ''[[Radio & Records]]'' ("R&R", which is based on radio airplay) instead of the ''Billboard Hot 100'' chart ''AT40'' was still using (which at the time was based on record sales). Further complications arose when some stations that stayed with Stevens also added Kasem's new show.

In an attempt to win back an audience, ''AT40'' tried new features, including interview clips, music news, top 5 flashbacks, and previews of upcoming chart hits (called the "''AT40'' Sneek Peek"<ref>According to Durkee, p. 252: "The word 'sneek'...was misspelled in the script for the first show that aired the feature, and [it] was never never subsequently corrected."</ref>). It also stopped using the Hot 100 chart, switching first to the [[Hot 100 Airplay]] chart and finally to the [[Mainstream Top 40]] chart. Later still, the countdown would use what was called a "No Nuttin'" gimmick that drew criticism; at various points of the show, a song would start immediately after the jingle for its position on the chart was played and Stevens would not offer any commentary until it concluded.<ref>Durkee, p. 240-241.</ref>

ABC kept ''American Top 40'' in its syndication lineup despite the continued lack of improvement in ratings, but in 1994 the network finally decided to cut its losses.<ref>Durkee, p. 216.</ref> ABC announced that after the July 9, 1994 edition of the program, it would be dropping ''AT40'' from its lineup and replacing it with ''[[Rick Dees Weekly Top 40]]''.<ref>Durkee, p. 218.</ref> The move resulted in ''AT40'' completely disappearing from United States radio, as no network picked it up for distribution domestically. Despite this, ''AT40'' did not end production. [[Radio Express]], the show's international distributor, kept the program alive for the overseas markets that had not dropped the series after ABC's cancellation.<ref>Durkee, p. 165.</ref>

On the weekend of January 28, 1995, the final episode of the original ''AT40'' was broadcast.

===1998–2004: ''American Top 40'' returns; second Casey Kasem era===
Two years later, in 1997, two separate and coincidental series of events would lead not only to the revival of ''American Top 40'', but would also see the return of Kasem to host it.

When Kasem left ABC Radio in 1988, the branding still belonged to him and show co-creator [[Don Bustany]] through their joint production company. In order to continue using the name after Kasem's contract with ABC Watermark expired, ABC would pay Kasem and Bustany a licensing fee. If at any point in the future ''AT40'' was to be cancelled, ABC would be required to attempt to use the branding in some form within a set period of time; if they did not, the network would lose the opportunity to continue licensing the brand and control of it would revert to Kasem and Bustany.

Bustany, however, decided to resign from the countdown shortly after Shadoe Stevens took over as the host. He would have no further involvement in production afterward. The agreement remained in force, though, and ABC eventually would be forced to return the branding rights in 1997 without making any sort of attempt to use them after the original ''AT40'' concluded in 1995; this resulted in Kasem acquiring sole control of the brand.<ref>Durkee, p. 251.</ref>

Meanwhile, Kasem's contract at Westwood One was due for renewal and the relationship between the two sides was becoming contentious. After Kasem's initial contract expired in 1993, Westwood One renewed it for four more years. Kasem had launched an adult contemporary countdown in 1992 as a companion to ''Casey's Top 40'' called ''Casey's Countdown'', and in 1994 he added a third countdown for hot adult contemporary stations titled ''Casey's Hot 20''.

Things were not all positive, though. Westwood One had been acquired by [[Infinity Broadcasting Corporation]] in 1993, which put Kasem in the same fold as radio personalities such as [[Howard Stern]]. Then, in 1996, Infinity Broadcasting was purchased by [[CBS]]. Kasem grew frustrated that no effort had been made to cross promote his shows over CBS’ airwaves, and had also complained that he was not given as much promotion as he initially had been getting when he joined up with Westwood One in 1989, especially now that he was hosting three weekly programs for the network instead of one. Westwood One, meanwhile, did not feel that ''Casey's Top 40'' was producing as much advertising revenue as it had been when Kasem's contract was up for renewal four years earlier; the program did not have as many affiliates by 1997 as it had in 1993, and the two largest media markets (New York and Los Angeles) had dropped the program several years earlier. Another sticking point between the two sides, other than Kasem's salary demands, was that Westwood One was not willing to let Kasem change the name of ''Casey's Top 40'' to ''American Top 40''.

The sides eventually put aside their differences, with Westwood One deciding that losing Kasem to a competitor was not worth their trouble and Kasem signed on for one more year in December 1997. However, after the February 21, 1998, edition of his weekend countdowns, Kasem disappeared from the airwaves without notice and, unbeknownst to Westwood One, with no intention of returning to work.<ref>Durkee, p. 253.</ref>

Chancellor Media, the media company founded by [[Roy Masters (commentator)|Roy Masters]], and Kasem began negotiations to relaunch ''AT40'' for its newly launched syndication service called AMFM Radio Networks. A deal was finalized shortly after Kasem's abrupt departure from Westwood One in which Chancellor would become owners of the ''AT40'' franchise and Kasem would return as host. Westwood One filed a breach of contract lawsuit against Kasem.

The revival of ''AT40'' premiered the weekend of March 28, 1998, one week after Westwood One finally cancelled the three countdowns Kasem was hosting for them after four weeks without him. Chancellor also brought Kasem's AC countdowns to their network, with both now being branded as ''American Top 20'' (see [[#Spin-off programming|Spin-off programming]] below). Masters sold Chancellor/AMFM to Clear Channel Communications (the predecessor of what is now [[iHeartMedia]]) in 1999, at which point ''AT40'' and other syndicated shows from AMFM Radio Networks were transferred into Premiere Radio Network.

The resurrected ''American Top 40'' kept the ''Radio and Records'' CHR/Pop chart previously used for ''Casey's Top 40'' and was used as the basis for the show for the majority of this period.{{citation needed|date=June 2024}}

In December 2003, as part of a new deal with Premiere Radio Networks, Kasem announced that he would retire from hosting ''American Top 40'' so he could focus on his duties hosting the Hot AC and AC versions of the show, ''American Top 20.'' He also announced that the new host of ''AT40'' would be [[Ryan Seacrest]], an afternoon DJ host from [[KYSR]] who was rapidly gaining stardom from his hosting of the successful music reality TV show ''[[American Idol]]''.<ref>{{Cite news|url=https://www.americanradiohistory.com/Archive-RandR/2000s/2003/RR-2003-12-12.pdf|title=Kasem Strikes New Countdown Deal As Seacrest Takes on AT40|date=December 12, 2003|work=Radio and Records}}</ref>

Kasem's last show as host of ''AT40'' aired on the weekend of January 3/4, 2004. His final No. 1 was [[Outkast]]'s "[[Hey Ya!]]", which hit the top of the chart on the weekend of December 13, 2003.<ref>"American Top 40" January 3, 2004, dist. by. [[Premiere Radio Networks]].</ref>

===Since 2004: Ryan Seacrest era===
[[File:americantop40.jpg|thumb|The first Ryan Seacrest era logo used from 2004 to 2014.|300px]]
On January 10, 2004, American Idol host [[Ryan Seacrest]] took over the hosting duties of ''American Top 40'' from Kasem, although Kasem would continue to host ''American Top 20'' and ''American Top 10'' until his retirement in July 2009.<ref name="retire">[http://fmqb.com/Article.asp?id=1357208 ''FMQB In Brief – June 5, 2009''] {{Webarchive|url=https://web.archive.org/web/20131022174816/http://fmqb.com/Article.asp?id=1357208 |date=October 22, 2013 }}. Retrieved on June 5, 2009.</ref> With the host change, ''AT40'' underwent a makeover, using a new theme song and introducing several new features.

The show also began using a new chart that used no recurrent rule. On the first show with Ryan Seacrest, this led to several older songs reappearing after dropping off many weeks earlier. Over the long term, it meant songs could spend long runs for about a year on the chart even after they went to recurrent status on other published charts. "[[Here Without You]]" by [[3 Doors Down]] set a longevity record in 2004 for the CHR show by lasting 50 weeks before finally falling off. In 2006, "[[Scars (Papa Roach song)|Scars]]" by [[Papa Roach]] would go on to tie the record. In 2011, [[Taio Cruz]] set ''AT40''{{'s}} all time longevity record with his song "[[Dynamite (Taio Cruz song)|Dynamite]]". This hit remained on the chart for 72 weeks, from July 2010 to November 2011. The record has since been broken by [[Rema (musician)|Rema]] & [[Selena Gomez]]‘s song “[[Calm Down (Rema song)|Calm Down]]”, which remained on the chart for 75 weeks, from November 2022 to April 2024, and [[Hozier]]'s "[[Too Sweet]]", which remained on the chart for 81 weeks, from May 2024 to November 2025. On the Hot AC version of AT40, "[[Use Somebody]]" by [[Kings of Leon]] set the all-time record in 2011 at 117 consecutive weeks. ''American Top 40'' also became more interactive, involving online song voting and e-mail. In December 2006, the series' website was revamped, and the online song voting was discontinued in favor of publishing the Hot AC chart. The website also includes a toll-free number where fans can make requests and "[[shout-out|shoutouts]]", as they would to a local radio station, and by 2009 replayed clips of shoutouts became part of the show. Online song voting was later reinstated, with results of votes on ''American Top 40''{{'s}} website factored into the chart rankings. AT40 was also expanded to social media through Twitter and Facebook where listeners from around the world will request a song to be included in the ''AT40'' Extra segment, as well as their own mobile application which is available for free download on the Apple AppStore for iOS devices and on Google Play for Android devices.
[[File:Ryan Seacrest 2013.jpg|thumb|Seacrest in 2013.]]

In March 2010, Premiere Radio Networks announced that "American Top 5," a condensed daily top-5 countdown, would begin airing as part of the daily radio program ''[[On Air with Ryan Seacrest (radio)|On Air]]'', also hosted by Seacrest.<ref>{{cite web |url=http://www.premiereradio.com/news/view/841.html |title=Premiere Radio Networks – Home |publisher=Premiereradio.com |date=March 16, 2010 |access-date=April 22, 2013 |archive-url=https://web.archive.org/web/20130128142249/http://premiereradio.com/news/view/841.html |archive-date=January 28, 2013 |url-status=dead  }}</ref>

In March 2020, amid the [[COVID-19 pandemic]], Seacrest started to host ''AT40'' from his house; the show also included pre-recorded messages from artists thanking healthcare workers and encouraging listeners to stay home, practice social distancing, and to keep in touch with loved ones.
<!-- Deleted image removed: [[File:American Top 40 logo.svg|thumb|New logo presented for the 50th anniversary.|300px]] -->
In August 2020, the show rebranded their logo for the 50th anniversary. It features lines similar to those on the edges of vinyl records. It was changed again in September 2021;
<ref>{{Cite web|url=https://www.instagram.com/accounts/login/?next=/p/CD6S7ssn2pr/|title=Instagram|website=Instagram.com|access-date=June 10, 2022}}</ref> the same month, Premiere announced the show had been renewed through 2025 with Seacrest as host.<ref>[https://radioinsight.com/headlines/213408/ryan-seacrest-extends-contract-with-iheartmedia/ Ryan Seacrest extends contract with iHeartMedia]. ''Radio Insight''. Retrieved September 28, 2021.</ref>

{{As of|2020}}, ''American Top 40'' is produced by Easton Allyn and Jennifer Sawalha, and engineered by James Rash.{{citation needed|date=June 2024}}

==Competition==
''American Top 40'' has faced numerous competitors since its debut in 1970. These include ''The Weekly Top 30 with [[Mark Elliott (voice-over artist)|Mark Elliott]]'' (1979–1982); several Dick Clark-hosted shows starting in 1981 with the ''National Music Survey'' and ''Countdown America'', the latter of which was originally hosted by former R&R CHR editor John Leader and later by Clark; ''Rockin' America Top 30 Countdown'' with then [[WHTZ|Z100]] Program Director and personality [[Scott Shannon]]; and the ''[[Rick Dees Weekly Top 40]]'', which has run continuously since 1983 with [[Rick Dees]] as host. Numerous other shows following the same format, both in the general top-40 category and in various specific [[radio format]]s, have aired over the course of ''AT40's'' history as well. In addition to Dees' show, [[Mario Lopez]], [[Carson Daly]], and (in overseas via ''World Chart Show'') Mike Savage, all host competing countdown shows targeted at the pop top 40 market.

==Rebroadcast of older shows==

===AT40 flashback===
From December 2000 to December 2002, many radio stations aired reruns of 1980–88 episodes under the title ''American Top 40 Flashback''. The show was syndicated by [[Premiere Radio Networks]]. In its early weeks the shows were the original four-hour format of an ''American Top 40'' episode, but after the first month and a half the show was reduced to three hours. Although the national syndication of ''American Top 40 Flashback'' ceased in December 2002, radio station [[WMMX]] in [[Dayton, Ohio]], continued to carry ''American Top 40 Flashback'' on Saturday mornings until the premiere of ''Casey Kasem's 'American Top 40: The 80s''.

===Casey Kasem's American Top 40: The 1970s and 1980s===
On August 4, 2006, [[XM Satellite Radio]] began replays of the original 1970s and 1980s ''AT40'' shows with Kasem that were digitally remastered from the original vinyl LPs and open-reel master tapes by Shannon Lynn of Charis Music Group. The event began with a weekend long marathon of original shows, with AT40 then being added as a regular show on two of XM's Decades channels, "[[The 70s on 7]]" and "[[The 80s on 8]]". With the merger of [[Sirius Satellite Radio]] and XM Satellite Radio, these ''AT40'' shows began airing on both services on November 15, 2008. On the 70s on 7, it replaced the 'Satellite Survey', a Top 30 countdown of 1970s hits, produced by Sirius and hosted by Dave Hoeffel. On the 80s on 8, it replaced 'The Big 40' countdown produced by Sirius and hosted by [[Nina Blackwood]]. As of October 11, 2009, Sirius XM replaced the ''AT40'' countdown on 80s on 8 and debuted a revised version of 'The Big 40' countdown now co-hosted by three of the five original MTV VJs: Nina Blackwood, [[Mark Goodman]] and [[Alan Hunter (VJ)|Alan Hunter]] ([[Martha Quinn]] was a fourth co-host from 2009 to 2015).

[[Sirius XM Radio|Sirius XM]] "70s on 7" currently runs ''AT40'' each Saturday at 12&nbsp;pm with encore broadcasts the following Sunday at 9&nbsp;am and at 12 midnight ([[Eastern Time]]). Most show dates roughly correspond to the current week in real time. A random episode is also featured on J.J. Walker's show on "70s on 7" Thursdays at 9&nbsp;pm ET. The mix of ''AT40'' episodes being run on XM include the year-end countdowns, which are typically run in two parts: the first half ({{abbr|Nos.|numbers}} 100 through 51) in one time slot, and then the second half ({{abbr|Nos.|numbers}} 50 through 1) in the following time slot. The AT40 specials are also part of XM's rotation; for instance, "''AT40'' Goes to the Movies" aired prior to the [[79th Academy Awards|2007 Academy Awards]], and on February 24, "The Top 40 Acts of the 80s So Far" aired on XM 80s the first week of July 2007. Also, "The Top 40 Songs of the Disco Era (1974–1979)" aired on Sirius XM "70s on 7" the second weekend of July 2011. As of the weekend of February 11, 2023, the 6am and noon Saturday editions were discontinued and replaced by a single 9 am Saturday airing, with the Sunday airing moved to noon Eastern time.

From October through early November 2006, [[oldies]] radio station [[KQQL]] in [[Minneapolis–Saint Paul|Minneapolis/St. Paul]], which is owned by [[iHeartMedia]], ran a series of ''American Top 40'' episodes from the 1970s. Aside from one week, when the station attempted to air a four-hour episode from 1979 in the three-hour time slot (resulting in the show getting cut off at No. 11 and the top 10 not being heard), this test run was largely successful. Because of the success, Premiere Radio Networks decided to launch "Casey Kasem's ''American Top 40'': The 1970s" into national syndication featuring the three-hour shows from 1970 to 1978, and the last three hours of shows originally aired from October 1978 through December 1979. (One original four-hour program, first aired in October 1978, was edited into a three-hour program for re-airing in 2007, and the four-hour "Disco Hits" special from July 1979 with the first hour optional was aired in 2008, but until the fall of 2010, no other program from the last 15 months of the 1970s was included in the "''AT40'': The 70s" package. Starting in late 2010, Premiere began airing three-hour versions of four-hour ''AT40s'' from 1978 to 1979, beginning the broadcasts at the start of the countdown's second hour; during the spring of 2012, Premiere began making the first hour of these programs "optional," meaning that stations can choose to air all four hours of the four-hour programs, or just the last three.) Starting in 2012, whenever programs from 1970 to 1972 were scheduled to air, Premiere began offering affiliates the option of airing a later 1970s program instead (typically, a corresponding year from seven years later, or 1977–1979).

The 1980s version premiered on April 8, 2007, replacing the ''American Top 40 Flashback'' reruns. The shows are available in either their full original four-hour format, or an abbreviated three-hour version that omits the first hour of the show. To date, the latest program to air as part of the "''AT40'': The 80s" package has been August 6, 1988 – Kasem's last show with the original program. Because the rights to Shadoe Stevens-era episodes were held by Cumulus Media, no programs from August 13, 1988, to 1995 have been re-aired as part of this or any similar block.

Newly produced extra segments hosted by voiceover talent Larry Morgan are available for use at stations' discretion. Prior to Kasem leaving Premiere Radio, these segments were hosted by his son Mike; when the series first began, these segments were hosted by one of Kasem's former guest hosts, Ed McMann. These extra segments are also heard on the 80s show. KQQL was the first to sign on, airing programs beginning on December 30, 2006. Typically, the "optional extras" were songs that had yet to enter the top 40 of the Hot 100. However, some songs never reached the top 40 but had since become popular at classic hits/oldies/classic rock stations or certain novelty songs that were popularized by certain media events like the ''[[Who shot J.R.?]]'' cliffhanger (recorded by [[Gary Burbank]]) and the Chicago Bears 1985–86 NFC win and the team itself [[The Super Bowl Shuffle|recording a rap tune]] about going to the Super Bowl, while others were tributes to performers who had just died. For early 1970s programs, some of the "optional extras" were actually extras (i.e., "oldies") that were originally a part of the original program; in this case, Kasem's original commentary and introduction of the song were kept intact, in lieu of Morgan's voiceover.

In March 2008, XM Satellite Radio rebranded the XM broadcasts with the "Casey Kasem's American Top 40" name and logo used for terrestrial broadcasts, although XM still aired the commercial-free broadcasts, while Premiere Radio carried edited and recut broadcasts with commercials.

===American Top 40 with Casey Kasem: 90s and 2000s===
While Premiere Radio did not officially re-air programs other than the aforementioned 70s and 80s charts, most radio stations would re-air the 1998-2003 Casey Kasem-hosted charts, often with the original commercials intact alongside local commercials. Since 2024, a channel airing the 1999-2003 charts, without any commercials, became available on iHeartRadio under the name ''American Top 40 with Casey Kasem: 90s and 2000s'', while using the 1984-88 logo.<ref>{{cite web | url=https://www.iheart.com/live/10423/ | title=AT 40 with Casey Kasem }}</ref>

==Chart data used by ''American Top 40''==

===''Billboard'' magazine===
''AT40'' used the top 40 songs from the [[Billboard Hot 100|''Billboard'' Hot 100]] singles chart from the show's inception in 1970 to November 23, 1991. The chart was widely regarded as the industry standard for tracking the popularity of singles, and was thus a natural choice to be used. Kasem would frequently announce during the show that ''Billboard'' was the only source for the countdown. While using these charts worked well for the first half of the 1970s, as music changed during the decade and disco became popular on the charts, some rock stations began to drop the show because of complaints from program directors that ''AT40'' was playing too many songs not normally heard on their stations.

This gradually became a wide schism as rock splintered into several formats in the early 1980s. As a result, ''AT40''{{'s}} weekly playlist could be very diverse in the styles and formats of the songs played. Historians have noted that no one station actually played all of the songs on the ''Billboard'' Hot 100 list, because they represented overlapping formats, such as hard rock, mainstream rock, heavy metal, dance, new wave, punk, rap, pop, easy listening/adult contemporary and country. Stations tended to specialize in only one or two of these formats and completely ignore the others.

In November 1991, ''American Top 40'' switched to the [[Billboard Hot 100 Airplay|Hot 100 Airplay]] chart (then known as the Top 40 Radio Monitor). These songs generally scored much higher radio airplay, and some were not even released as singles (such as "Steel Bars" by [[Michael Bolton]]). During this time, a few songs made very high debuts, including two that almost debuted in the No. 1 spot: "I'll Be There" by [[Mariah Carey]], which entered at No. 4, and "Erotica" by [[Madonna (entertainer)|Madonna]], which entered at No. 2.

In January 1993, ''American Top 40'' switched charts again, this time to the ''Billboard'' [[Top 40 Mainstream]] chart. This chart had more mainstream hits but fewer urban, dance and rap songs.

''AT40'' did not always use the official year-end ''Billboard'' chart during the 25 years in which the show used ''Billboard'' charts. In 1972, 1973 and 1977, as well as 1980–1984 and 1990–1994, AT40 compiled its own year-end chart. These charts were often close to ''Billboard''{{'}}s, but ''AT40'' would use a mid-December to early-December time period while ''Billboard''{{'}}s survey year varied from year to year. ''AT40'' matched ''Billboard''{{'}}s No. 1 year-end song every year except 1977, 1984, 1990 and 1993.

===''Radio and Records'' magazine===
With the show's revival in 1998, a new chart was implemented, the top 40 portion of ''Radio and Records'' CHR/Pop top 50 chart, which was already in use on ''Casey's Top 40''. This chart used a [[recurrent rotation|recurrent rule]] that removed songs below No. 25 that had exceeded 26 weeks in the top 50; these removals, if they occurred in the top 40, would be reflected on the appropriate week's program. In 1999, the rule was modified to further restrict long chart runs: songs falling below {{abbr|No.|number}} 20 with at least 20 weeks in the top 50 would now be removed.

On October 21, 2000, ''American Top 40'' began using an unpublished chart on a weekly basis for the first time in its history. The chart seemed to be a variant of the CHR/Pop chart provided by [[Mediabase]], the data provider to ''Radio & Records''. The most noticeable feature of this new chart was its ambiguous recurrent rule. Songs would be removed regularly from within the top 15, seemingly regardless of the number of weeks they had spent on the chart. Additionally, the chart has resulted in songs that otherwise peaked at {{abbr|Nos.|numbers}} 41–50 on R&R's charts appearing on the ''AT40'' charts. This chart lasted until August 11, 2001, when ''AT40'' returned to the ''Radio & Records'' pop chart. The return coincided with another modification in the recurrent rule; songs would be removed below No. 25 after three consecutive weeks without a bullet (an increase in radio plays). This change would be short-lived, as in November 2001, ''Radio & Records'' returned to the 20 weeks/below No. 20 rule, which remained in place for the remainder of Kasem's tenure.

== Spin-off programming ==
===Adult Contemporary countdowns===
{{main|American Top 20}}

When Kasem joined what was then AMFM Radio Networks, he had been doing two weekly countdowns for adult contemporary formatted stations. Both of these shows would find a home with him at his new syndicator and were rebranded once he joined. Both shows took the name ''American Top 20'' (''AT20'') and launched the same weekend as Kasem's new ''AT40''. He would concurrently host both shows with ''AT40'' until he handed the show over to Ryan Seacrest in January 2004, then continue as host of the AC countdowns until he retired in 2009. After Kasem retired, the Hot AC ''American Top 20'' and the Adult Contemporary ''American Top 10'' were discontinued.

In December 2004, Premiere Networks launched a version of Seacrest's ''AT40'' for the same hot adult contemporary stations that ''AT20'' had been targeting. Although such a move made ''AT20'' redundant, Premiere continued to offer Hot AC countdowns hosted by both Kasem (''AT20'') and Seacrest (''AT40'') from December 2004 thru July 2009.

===Television spinoff===
{{main|America's Top 10}}

From 1980 to 1992, a [[music video|video]] version of the show entitled ''America's Top 10'' was aired in [[broadcast syndication|syndication]] to television stations across the United States. Kasem hosted this version from 1980 to 1989. When Kasem left ''American Top 40'' in 1988, he remained as host of ''America's Top 10'' until the end of 1989, when he would be replaced by [[Siedah Garrett]] and later [[Tommy Puett]]. Kasem returned by 1991, and the show ran until 1992.

===Other formats===
Based on the success of ''American Top 40'', Kasem and Don Bustany created a spinoff top 40 countdown for Watermark for Country Radio called ''[[American Country Countdown]]'', patterned after Kasem's program. "ACC" premiered in 1973, and was hosted by [[Don Bowman (singer)|Don Bowman]] from its inception until April 1978. [[Bob Kingsley]] replaced Bowman and hosted until the end of 2005, after which [[Kix Brooks]] of the late country music duo [[Brooks & Dunn]] took over. Brooks hosted ''ACC'' until the end of 2024. Ryan Fox, who also works as morning DJ at [[KPLX]] in [[Dallas]], took over hosting duties for Kix Brooks the weekend of January 4, 2025. Kingsley later moved to another program, ''[[Bob Kingsley's Country Top 40|Country Top 40]]'' which follows the same format as ''AT40'' and ''ACC'';{{citation needed|date=June 2024}} Kingsley died on Thursday, October 17, 2019. Both ''ACC'' and ''CT40'' remain on the air: ''ACC'' on [[Westwood One]] and ''CT40'', now hosted by Fitz, syndicated by [[Hubbard Broadcasting]].

After Kasem left ABC, the network launched ''American Gold'', a spinoff oldies countdown (featuring far fewer songs, and often focusing on a particular artist) hosted by [[Dick Bartley]]. ''American Gold'''s last show aired at the end of March 2009, replaced with another show hosted by Bartley for [[United Stations Radio Networks]], ''[[Classic Countdown]]''.

The ''American Top 40'' format was adapted in an Australian show titled ''[[Take 40 Australia]]'', similarly counting down the top 40 songs in the country.{{citation needed|date=June 2024}}

== Syndication ==
In the United States, ''American Top 40'' is available in almost every [[radio market]] in the U.S. It had at least one radio station in every state up until Rhode Island-based [[WSNE-FM|WSNE]] dropped the show in 2020. As of April 2025, New Jersey and Rhode Island are the only two states that don't have a local station carrying ''American Top 40''. Rhode Island can still pick up the show either from Connecticut's [[WKSS]] or Boston's [[WXKS-FM]]. [[North Jersey]] can still receive the show either from New York's [[WHTZ]] or the [[Lehigh Valley]]'s [[WAEB-FM|WAEB]]. [[KKBT (FM)|KKBT]] in [[American Samoa]] is the only radio station in an American [[Territories of the United States|territory]] that airs the show, although ''AT40'' previously aired in [[Puerto Rico]] and [[Guam]].

In Canada, more than 50 stations air ''AT40'', most being owned by [[IHeartRadio Canada|IHeartRadio]] and [[Golden West Broadcasting (Canada)|Golden West Broadcasting]]. The [[Move Radio]] network stations air the show as ''Move Radio's Exclusive AT40'' with some songs omitted and replaced with songs by Canadian artists.<ref>{{Cite web|title=iHeartRadio Canada Launches New National Brand MOVE Radio|url=https://www.bellmedia.ca/the-lede/alerts/iheartradio-canada-launches-new-national-brand-move-radio/|access-date=2021-09-04|website=Bellmedia.ca}}</ref> In 2021, Ontario-based station [[CKPR-FM]] added a special [[Hot AC]] version of the chart that included contemporary Canadian artists that also airs on [[CIGO-FM]], [[CFLY-FM]]<ref group=Note name=Note01/>, and [[CHGK-FM]]. This is done to follow [[Canadian content|Canadian broadcast regulations]]. Other Canadian stations like [[CIGL-FM]], and [[CKSY-FM]] omit the optional extras.

In addition to the United States and Canada, ''American Top 40'' is also carried by several stations worldwide, including [[Indigo 91.9 FM|Indigo 91.9]] in India, [[Amber Sound FM]] in England, [[Nile FM]] in Egypt, and [[MBC Group|Loud FM]] in Saudi Arabia.<ref>{{Cite web |date=May 30, 2023 |title=MBC LOUD FM Adds "On Air with Ryan Seacrest" and "American Top 40 with Ryan Seacrest" |url=https://www.premierenetworks.com/ |access-date=2023-10-15 |website=www.premierenetworks.com}}</ref><ref>{{Cite web |last=Kijamii |title=AT 40 {{!}} NileFM {{!}} EGYPT'S#1 FOR HIT MUSIC |url=https://nilefm.com/26/AT%2040 |access-date=2023-10-15 |website=nilefm.com}}</ref>

==Censorship, offensive songs and affiliate standards==
{{Organize section|date=June 2024|reason=Major removal of unsourced content has made this section a mess; subsection headings may need to be reevaluated or removed.}}
Kasem and Watermark's policy regarding putting ''American Top 40'' together was to always play the forty most popular songs in the United States and never to ban a record from the countdown. However, whenever songs with potentially offensive lyrical content made the top 40, Watermark would send out memos to affiliated stations alerting them of the presence of that song in the countdown and sometimes provide stations with suggestions on how to edit the song out of their ''AT40'' broadcasts.

When the show became part of Premiere Networks in 1998, a few stations airing ''AT40'' (especially in most countries around the world) opted to either change versions of each song or skipped some portions of the show for various reasons.

===Offensive content===
The first song to receive this advisory was in April and May 1971, with a spoken word piece, "[[The Battle Hymn of Lt. Calley]]", by [[Terry Nelson (musician)|Terry Nelson]] and C-Company.<ref>Durkee, p. 66.</ref><ref>[http://www.oldradioshows.com/at40/042471.html ''oldradioshows.com: Casey Kasem's American Top 40, 4/24/71'']. Retrieved on November 26, 2008. This song would chart in the high-30s for four weeks, dropping out after May 15, 1971.</ref> Some better-known songs which received this treatment included "[[Kodachrome (song)|Kodachrome]]" by [[Paul Simon]], "[[Roxanne (The Police song)|Roxanne]]" by [[The Police]], "[[Ain't Love a Bitch]]" by [[Rod Stewart]], and "[[Paradise by the Dashboard Light]]" by [[Meatloaf (singer)|Meat Loaf]].

Perhaps the most infamous of these songs was [[Chuck Berry]]'s number-one hit "[[My Ding-a-Ling]]", which put some stations in the odd position of having to air ''AT40'' without playing the number-one song; at least one station, [[KTBZ (AM)|KELI]] in [[Tulsa, Oklahoma]], censored out the song at its No. 1 position, replacing it with a message from station management, explaining why they chose to censor the program.<ref>''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (p.70). Bloomington, Indiana: Author House, 2004.</ref> The censorship of this song continued even into the twenty-first century; some stations, such as [[WOGL]] in [[Philadelphia]], replaced this song with an optional extra when it aired a rerun of the November 18, 1972, broadcast (where it ranked at {{abbr|No.|number}} 14)<ref>[http://www.oldradioshows.com/at40/111872.html oldradioshows.com: "American Top 40, 11/18/1972".] {{webarchive|url=https://web.archive.org/web/20090104013312/http://www.oldradioshows.com/at40/111872.html |date=January 4, 2009 }} Retrieved on December 8, 2008.</ref> on December 6, 2008.

In 1978, when Billy Joel's "[[Only the Good Die Young]]" (wherein Joel urged pre-marital sex by a teen Catholic girl, Virginia) was on the charts, AT40 had placed warnings in shipments to warn affiliates in highly Catholic populated areas along with a special break in the countdown for stations to substitute another song in its place. The affiliates usually used the suggestion, though some did not and no major complaints were ever heard. (Many of these memos have been reprinted in Pete Battistini's book, "American Top 40 with Casey Kasem: The 1970s".)

In situations where a charting song contained offensive language and the record company was unable to provide AT40 with a clean edit of the song, the producers would often make an edit themselves. Such was a case with [[Bob Dylan]]'s Top 40 single, "[[George Jackson (song)|George Jackson]]", which peaked at {{abbr|No.|number}} 33 in January 1972 and appeared for two weeks on ''AT40''. The offensive lyric in the song was, "He wouldn't take [[shit]] from no one." To rectify the problem, ''AT40'' engineer Bill Hergonson edited the lyric, which was now heard as "He wouldn't take ''it'' from no one."<ref>''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (pp.54–55). Bloomington, Indiana: Author House, 2004.</ref> A similar situation occurred again in July 1975, when [[The Isley Brothers]]' "[[Fight the Power (Part 1 & 2)|Fight the Power]]" was in the Top 40, but in this case, the substitute version provided by the group's label was unsuitable, resorting to the engineer to substitute grunts and extra drum beats over the offending parts of the original record. However, this was not before AT40 erroneously played the uncensored version (with the lyric "...{{nbsp}}by all this bullshit goin' down") the first two weeks on the chart, on the July 12 and 19, 1975 editions.<ref>''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (pp.152–154). Bloomington, Indiana: Author House, 2004.</ref>

During the 1987 chart run of the [[George Michael]] hit “[[I Want Your Sex]],” Kasem introduced the song without naming the title by identifying only Michael and his “current hit.”

===Station decisions===
According to Rob Durkee's book "American Top 40: The Countdown of the Century", Dave Morgan of WDHF (now [[WCHI-FM]]) in Chicago ghosted an edition of the program sometime in the summer of 1975. When the station's copy of the show did not arrive in time, he used ''Billboard''{{'}}s list and merely played the records, apparently heavily implying that the show was ''American Top 40'' without actually identifying it as such. "My program director made me do it!" Morgan said years later. The following year, WDHF would refuse to play ''AT40''{{'s}} "Fourth of July's Greatest Hits" special, because No. 1 hits from the pre-rock era were overabundant in the special. But while the special was a stark departure from the contemporary sound of the 1970s, Tom Rounds in his press release reminded stations that it was the United States' "one and only bicentennial."<ref>''American Top 40 with Casey Kasem: The 1970s'', by Pete Battistini (pp.175). Bloomington, Indiana: Author House, 2004.</ref>

==Special countdowns==
Occasionally ''American Top 40'' airs special countdowns in place of the regular ''American Top 40'' countdown show. These included:
* "Top 40 Recording Acts of the Rock Era 1955–1971" (Weekend of May 1–2, 1971)
* "Top 40 Christmas Songs" (Weekend of December 25–26, 1971)
* "Top 40 Songs of the Rock Era 1955–1972" (weekend of July 1–2, 1972)
* "Top 40 Albums of the Week" (weekend of August 5–6, 1972; the Top 40 singles were also counted down alongside that week's albums)
* "Top 40 Artists from Sept 1, 1967, to Sept 1, 1972" (weekend of September 30 – October 1, 1972)
* "Top 40 Songs from March 1968 to March 1973" (weekend of April 7–8, 1973)
* "Top 40 Disappearing Acts" (weekend of July 7–8, 1973)
* "Top 40 Recording Acts of the Rock Era 1955–1973" (weekend of October 6–7, 1973)
* "Top 40 Christmas Songs" (weekend of December 22–23, 1973)
* "Top 40 Hits of British Artists 1955–1974" (weekend of April 6–7, 1974)
* "Top 40 Acts of the 1970s, So Far" (weekend of July 6–7, 1974)
* "Top 10 Producers of the 1970s" (weekend of October 5–6, 1974)
* "Top 40 Disappearing Acts" (weekend of April 1–2, 1975)
* "Top 40 Rock 'n' Roll Acts of the 1950s" (weekend of October 4–5, 1975)
* "Bicentennial Special: #1 July 4 Songs of the Past 40 Years" (weekend of July 3–4, 1976)
* "Top 40 Songs of the 'Beatle Years'[1964–1970]" (weekend of October 2–3, 1976)
* "Top 40 Girls of the Rock Era 1955–1977" (weekend of July 2–3, 1977)
* "Top 40 Movie Songs 1960–1978" (weekend of Apr 4–5, 1978)
* "Top 40 Acts of the 1970s, So Far" (weekend of Jul 1–2, 1978)
* "The Top 40 Songs of the Disco Era 1974–1979" (weekend of July 7–8, 1979)
* "The Top 50 Songs of the 1970s" (weekend of January 5–6, 1980)
* "AT40 Book of Records" (weekend of July 5–6, 1980)
* "Top 40 Hits of the Beatles: Together and Apart" (weekend of July 4–5, 1981)
* "Top 40 Acts of the 1980s, So Far" (weekend of July 2–3, 1983)
* "Giants of Rock" (weekend of July 5–6, 1986)
* "Top 40 Hits of the 1980s, So Far" (weekend of July 4–5, 1987)
* "Top 40 Newcomers of the 1980s, So Far" (weekend of May 30–31, 1988)
* "Triathlon of Rock 'n Roll" (weekend of July 4–5, 1988)
* "World Tour" (weekend of May 27–29, 1989)
* "AT40 Book of Records, 1980s Edition" (weekend of August 31 – September 4, 1989)
* "Top 40 American Acts of the Previous 10 Years" (weekend of July 1–2, 1991)
* "Top 40 Hits of the Past Decade" (weekend of January 2–3, 2010)
* "Top 40 Songs of the Decade" (weekend of December 28–29, 2019)

===Annual countdowns===
The top songs of the year are counted down near the turning of each year, though the format has varied over the years.

*Top 40 (over 1 week): 1971, 1973, 1999, 2010–present*
*Top 50 (over 1 week): 1979, 1994
*Top 80 (over 2 weeks): 1970, 1972
*Top 100 (over 2 weeks): 1974–78, 1980–82, 1992, 1998, 2000–09
*Top 100 (over 1 week): 1983–91, 1993

During the show's original run, the 2-week Top 100 programs came with special instructions for editing the show into one 8-hour block. Conversely, the 1-week Top 100 programs came with instructions to split the show into two 4-hour blocks.

In 1971 and 1973, only the top 40 was counted down because of ''AT40''{{'s}} Top 40 Christmas Countdowns which aired the week prior. The show did not air Christmas countdowns again until the spinoff shows "American Top 20" and "American Top 10" came into existence, as both of these spinoffs aired a "Top 60 Christmas Songs" special annually the two weeks immediately preceding Christmas.

Since 2010, the show has aired the same Top 40 year-end chart two weeks in a row, with the only differences being the optional AT40 Extras and re-cut announcements mentioning the [[Dick Clark's New Year's Rockin' Eve]] (which Seacrest also hosts) as a past event instead of an upcoming event. An exception to this was in 2019 when the year-end chart was aired only on the weekend before Christmas, because the decade-end chart would air the following weekend, with the normal chart resuming the first weekend of January.

===Decade-end countdowns===
In 1979, 1999, 2009 and 2019, the show aired special countdowns of the decade's biggest hits. In 1979 and 1999, the annual year-end countdown show was cut to one week (4 hours) to accommodate the special countdown, though in 2009, they aired a third special week after their usual two-week Top 100. The decade-end shows counted down the Top 50 of the 1970s, and the Top 40s of the 1990s, 2000s, and 2010s. There was no decade-end countdown for the 1980s.

==Substitute hosts and guest co-hosts==
Over 50 celebrities—among them radio personalities, game show hosts, and (particularly since Ryan Seacrest took over hosting duties) charting artists—have substituted for these three throughout the show's run. Radio announcer [[Charlie Van Dyke]] filled in for Kasem a record 31 times in the 1980s.<ref>Durkee, p. 144.</ref>

==References==
* Durkee, Rob. ''American Top 40: The Countdown of the Century''. {{ISBN|0-02-864895-1}}. New York City: Schirmer Books, 1999. Accessed December 10, 2007.
{{Clear}}
{{Reflist}}

== Notes ==
{{reflist|group=Note|refs=<ref name=Note01>CFLY-FM was a "Move" branded station until 2025, but still carries the show, however the show is referred to as "The Biggest Hits Across Canada" as opposed to "The USA".</ref>
}}

==Further reading==
* Battistini, Pete. ''American Top 40 with Casey Kasem (The 1970s).'' Authorhouse.com, January 31, 2005. {{ISBN|1-4184-1070-5}}.
* Battistini, Pete. ''American Top 40 with Casey Kasem (The 1980s).'' Authorhouse.com, December 21, 2010. {{ISBN|978-1-4520-5038-6}}.
* {{cite magazine|first=Gary|last=Trust|title=How Casey Kasem Gave Billboard A Voice|url=https://www.billboard.com/pro/how-casey-kasem-gave-billboard-a-voice/|magazine=[[Billboard (magazine)|Billboard]]|date=June 15, 2014|url-access=subscription|access-date=October 1, 2022}}

==External links==
{{wikiquote}}
* {{Official website|https://www.americantop40.com/}}
* {{iHeartRadio|4802}}
* {{iHeartRadio|6545}} <small>(Classic AT40 70s/80s)</small>
<!--* [https://djgarybaldy.co.uk/weekly-american-top-40-charts-archive/ Archive since September 2011]-->
* [https://web.archive.org/web/20160330035617/https://weeklytop40.wordpress.com/ Archive 1955 through 2006]
* [https://www.at40.com/howtolisten/ Listen to ''American Top 40'' online] – list of radio stations carrying Ryan Seacrest's American Top 40
* [https://at40fg.proboards.com/thread/5003/80s-current-station-list-2018 AT 40 80's CURRENT Station List (As Of May 2, 2022) | American Top 40 Fun & Games Site] – List of radio stations carrying Classic American Top 40
* [https://www.nytimes.com/2011/07/17/magazine/the-swan-song-of-the-top-40.html?pagewanted=all&_r=0 ‘Well, Here It Comes! The Biggest Song in the U.S.A.!’] – ''The New York Times'', 2011 – on the meaning of the Top 40
* [http://www.charismusicgroup.com/calendar.htm Charis Music Group's ''AT40'' calendar from July 1970 to January 1995] – featuring cue sheets for most shows in PDF format. Charis' owner, Shannon Lynn, has remastered all the episodes of the original AT40 run (1970–1988) from tape and LP to digital format for syndicated re-broadcast. Also features info on other countdown shows and syndicated programs
* [http://www.at40fan.info/at40/index.html ''AT40'' with Casey and Shadoe] – history of the show as well as pictures and scans of ''AT40'' cue sheets, memos, and more
* [https://djgarybaldy.co.uk/weekly-american-top-40-charts-archive/ Weekly American Top 40 charts archive] {{Webarchive|url=https://web.archive.org/web/20170101063839/http://djgarybaldy.co.uk/weekly-american-top-40-charts-archive/ |date=January 1, 2017 }}

[[Category:American Top 40| ]]
[[Category:American music radio programs]]
[[Category:American record charts]]
[[Category:IHeartRadio digital channels]]
[[Category:Music chart shows]]
[[Category:Radio programs on XM Satellite Radio]]
[[Category:1970 radio programme debuts]]