"Curtain Falls" is a song by English boy band Blue. It was released on 8 November 2004 as the first single from their first greatest hits album, Best of Blue (2004). The song was co-written by the band and Stargate, and produced by Stargate and reached number one in Italy. In France, the song was re-recorded in French and re-titled "Quand Le Rideau Tombe", and thus, this version was released as a single there.