"Since I Left You" is a song by Australian electronic dance music group The Avalanches. It was released as the third single from the group's debut studio album of the same name on 5 February 2001. Produced by group members Robbie Chater and Darren Seltmann, "Since I Left You" utilizes numerous samples of other artists' material. The song's chorus is a prominent vocal sample of The Main Attraction's "Everyday" (1967). The song was positively reviewed by music critics Read more on Last.fm.