"Choir" is a song by Australian recording artist Guy Sebastian. It was released on 31 May 2019 as the second single from Sebastian's forthcoming ninth studio album.
The song is dedicated to his great friend and musical collaborator Luke Liang, who died following a battle with mental health. Sebastian said "[His death] was very unexpected. In fact, I'd actually done a gig with Luke, who passed away, just before I left for LA. And I could sense that something wasn't quite right... It was very hard to process and it still is." The song was originally a ballad but Sebastian changed it into "an upbeat, poignant song about the choir of voices Liang has joined in death, and the choir of voices “keeping his light alive” on earth."
Sebastian performed an acoustic version of the song on 60 Minutes.