21 (Hunter Hayes song)
"21" is a song by American country singer Hunter Hayes, released as the lead single from his 2015 project The 21 Project. The mid-tempo track, lasting 3:13, blends country pop and pop rock. It was written by Dallas Davidson, Kelley Lovelace, and Ashley Gorley, with Hayes contributing to the arrangement. Dann Huff and Hayes produced the song.
The single came out in the UK on May 21, 2015, and in North America on May 26, 2015, before impacting country radio on June 8, 2015. It’s also included on Hayes’s EP 21 (2015). The song is about carefree, young-adult days and opens with a “nah nah nah” chant over a guitar riff Hayes added. Critics described it as a party song with lyrics that are more straightforward than those on his previous album, Storyline.
"21" debuted at number 32 on the Billboard Country Airplay chart. The music video was directed by Kristin Barlowe and released in June 2015. By December 2015, the song had sold about 117,000 copies in the US. The single followed “Light Me Up” (2015) and preceded “Yesterday’s Song” (2016).
This page was last edited on 3 February 2026, at 06:20 (CET).