2015 EP by Hunter Hayes
21 is the second extended play by American country music artist Hunter Hayes, released to streaming services on August 7, 2015.[1] It is expected to be made available to digital retailers at a later date and serves as a prelude to Hayes's forthcoming third studio album, scheduled for released in the fall of 2015.[2] 21 includes all of the digital-only singles releases from Hayes Spotify-exclusive "The Drop" campaign, led by the project's eponymous lead single, "21", released on May 21, 2015.[2]