“I Don’t Belong In This Club” is a collaborative effort between Why Don’t We and Macklemore. It marks the band’s second-ever collaboration, following a feature on Logan Paul’s track “Help Me Help You” in 2017.

The band first teased the track on Twitter and Instagram, just days before their 8 Letters tour began, with a caption simply #IDBITC. This was their third single released in 2019, following January’s “Big Plans” and February’s “Cold In LA”.