iHeartRadio Countdown is a globally-syndicated, independent song countdown radio program. The countdown is based on the popular iHeartRadio, an Internet radio platform owned by iHeartMedia, Inc. (formerly Clear Channel Broadcasting, Inc.) The show premiered on January 14, 2014 on selected iHeartMedia-owned stations, and is syndicated by Premiere Networks and ARN in Australia. Internationally, the show airs on Shanghai's KFM 98.1 and the Cayman Islands' X107.1.