Gains in performance. Kid Harpoon, T. Johnson H. Styles, T. Hull, M. Rowland, T. Tamposi, S. Johnson, M. Hutchence, J. Johnson, D.
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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. Nearly radio stations in the United States, and several other territories worldwide air AT40 making it one of the most listened-to weekly radio programs in the world. GEICO is the main sponsor for the show. Shadoe Stevens took over the program on August 13, , and hosted until January 28, , when the original program came to an end. Kasem, who had spent nine years hosting his own countdown for Westwood One, returned to hosting his creation on March 28, Seacrest took over AT40 on January 10, , following Kasem's retirement from the series. However, there is no distinction made between the two shows on air. There are also two classic editions of the original AT40 distributed every weekend, featuring past Kasem-hosted shows from the s and s. In its early years, the AT40 used the Billboard charts to compile the countdown, touting it as "the only source".
Top Charts. Greatest of All Time. Breaking and Entering. Songs Of The Summer. Additional Charts. Taylor Swift. Blinding Lights. Greatest Hits.
The Billboard Hot is the music industry standard record chart in the United States for songs, published weekly by Billboard magazine. Chart rankings are based on sales physical and digital , radio play , and online streaming in the United States. The weekly tracking period for sales was initially Monday to Sunday when Nielsen started tracking sales in , but was changed to Friday to Thursday in July This tracking period also applies to compiling online streaming data. Radio airplay, which, unlike sales figures and streaming, is readily available on a real-time basis, is tracked on a Monday to Sunday cycle previously Wednesday to Tuesday. As of the issue for the week ending on August 8, , the Billboard Hot has had 1, different number one entries. The chart's current number-one song is " Cardigan " by Taylor Swift.