History Radio / AmericanTop40

*** "This is Casey on ''American Top 40'' (in Hollywood)."
** Shadoe Stevens had a couple of his own variations on the above:

** The theme and musical sound changed twice more in the late 1980s; the first happened in April 1987, when the show's sound got even more synthetic and grounded in UsefulNotes/{{MIDI}}. This package, done by Firstcom, was a smaller affair with two themes (show theme and hour theme) and four bumpers with the odd bit of production music thrown in every now and again. This package, accompanied by the number callout jingles from 1984's package, would last until 1989, several months into Shadoe Stevens' tenure, when LA-based HLC/Killer Music took over. Along with a new intro and end-of-hour/show theme, featuring a group of singers vocalizing the "American Top 40" riff for the first time in the show's history, HLC/Killer Music put their own spin on the general theme of "evolving with the times", with bumpers now in a range of styles from hip-hop to upbeat pop to hard rock to soft ballads. HLC would update the package one last time in 1992, with a new intro and new end of hour/end of show themes in a '90s pop style, plus many of the previous bumpers initially replaced with a new set featuring the previous styles -- hard rock, upbeat pop, heavy piano ballads -- in an even more "'90s" sound; these gradually gave way primarily to downright bizarre TotallyRadical sounders featuring a digitally-deepened voice saying the show's title.

** Several episodes during Casey's original run of the show would feature a substitute host whenever he was unavailable. These would normally range be radio personalities or voice over artists, including Creator/DickClark, [[Series/TicTacDough Wink Martindale]], Creator/GaryOwens, ACC host Bob Kingsley, and frequent guest hosts and show [[TheAnnouncer Announcers]] Mark Elliot and Charlie van Dyke (with occasionally rotating show announcer Keri Tombazian also subbing in for a week during 1983, and another week in 1988). The second-to-last episode of his tenure being hosted by Music/DarylHallAndJohnOates, a fact that didn't escape him when he returned the following week and announced that they just missed out on introducing their new hit, [[{{Irony}} conveniently named]] "Missed Opportunity", which debuted at #38. This tradition would carry over to ''Casey's Top 40'', with Elliot, and later David Perry serving as guest hosts.

** Kasem's TV series, ''America's Top 10'', started out as a [[PhonyNewscast faux newscast]], with Casey sitting behind an anchor desk in a suit. After a few shows they switched to a more relaxed style with a sweater-clad Kasem sitting cross-legged in a chair or standing by a monitor.

** Also, during the run of ''Casey's Top 40'', Casey made reference to ''Billboard'' chart data when discussing pre-1973 hits and to ''Radio & Records'' data when discussing post-1973 hits, since ''[=R&R=]'' began publishing in 1973. For example, in answering a listener question on ''[=CT40=]'' about the first rap record to reach number one on the pop charts, Casey cited the answer as "U Can't Touch This" by Music/MCHammer, which hit #1 on the ''[=R&R=]'' chart in 1990 while only reaching #8 on the ''Billboard'' chart. (In an odd coincidence, "Rapture" by Music/{{Blondie}}, the first rap record to reach #1 in ''Billboard'', only reached #8 in ''[=R&R=]''.)

** The 20th Anniversary Special (aired July 6-7, 1990) listed "The Love You Save" by [[Music/TheJacksons The Jackson 5]] as the first #1 song played on ''[=AT40=]'', for the week ending July 4, 1970. While "The Love You Save" was in fact the #1 song that particular week, it was ''not'' the first #1 song played on the program -- as the inaugural ''[=AT40=]'' broadcast had actually counted down the top hits for the ''following'' week (ending July 11), the honor actually belongs to "Mama Told Me Not to Come" by Three Dog Night, a fact that ''[=AT40=]'' itself had even acknowledged in the past.

** As the 1980s rolled around, the music would slowly evolve to fit with the times. The music in use at the time would be supplemented in both 1981 and 1982 by another Dallas company, JAM Creative Productions, who used a far lighter, more melodic tone for their music (used for the hour openers and closers, with bumpers added in for the 1982 package; similar to the sound they utilized for Creator/DickClark's show) than the harder sound employed by the TM tracks. For 1984, JAM would make a full package for the show. Taking cues from the shifts musical trends were taking at the time, this set utilized a mix of SynthPop, {{rock}}, and the company's [[SignatureStyle trademark horn section]] with four individual tracks for the show opening, ending, and bottom and top-of-hour breaks. Alongside four sets of bumpers that were each mixed out into acapella and instrumental versions, with both the "The Hits From Coast to Coast" and "Casey's Coast to Coast" taglines used interchangeably for the bumpers leading into commercials. It would be supplemented by commercial bumpers carrying a much heavier synth sound for 1985. Conversely, the intro's opening notes --a rendition of the "Hits From Coast to Coast" tagline -- would switch from futuristic synths to a full horn section in the process.

* InSeriesNickname: Shadoe would usually refer to the production staff as the "Whiplash Acrobatic Ensemble", mainly in the end credits.