American Top 40 (AT40) is an internationally syndicated, independent song countdown radio program hosted by Ryan Seacrest in his weekday radio program, On Air with Ryan Seacrest. It is one of the most listened-to weekly radio programs in the world, as it is aired by nearly 500 radio stations in the United States and several other territories worldwide.

AT40 is distributed by Premiere Networks (a division of iHeartMedia) and can also be heard on iHeartRadio, TuneIn, and the official AT40 applications.

Jungkook's collaboration single 'Left And Right' with Charlie Puth feat Jungkook has spent nine consecutive weeks on both American Top 40 Radio Charts, i.e., Top 40 and Hot AC Charts. The song is currently sitting prettily at #14 on both AT40 charts.

Jungkook is the first K-Pop and Korean Solo Artist to enter the Top 15 of both American Top 40 charts (Top 40 and Hot AC Charts).