AREA21 is an electronic dance music duo consisting of Dutch DJ Martin Garrix and American recording artist Maejor.

It gained popularity after Martin Garrix debuted their song "Spaceships" in his set during Ultra Music Festival 2016 in which Garrix had headlined. The duo is signed to Garrix's record label STMPD RCRDS. Their identities were previously unknown despite speculations about Garrix being a part of it alongside one or more vocalists. Throughout media and journalism, AREA21 has been described as "Martin Garrix's new side project". Their logo consists of two aliens being inside a spaceship. Asher Roth was speculated to be the unknown member of the group, however it was revealed to be Maejor. Their song "Spaceships" peaked on the Spotify Viral 50 chart at third. After one year, they released their third single "We Did It" on the 23rd of June 2017.

On the 1st of December 2017, they released their fourth single "Glad You Came", which orignally debuted during Martin Garrix's Ultra Music 2017 set.