"Steal My Sunshine" is a song by Canadian alternative rock band Len from their third studio album, You Can't Stop the Bum Rush (1999). The song was initially released on the soundtrack to the 1999 crime comedy film Go, which resulted in the song receiving heavy airplay. It was later released to contemporary hit radio as the lead single from You Can't Stop the Bum Rush on June 22, 1999, by Work Group. Marc Costanzo and Gregg Diamond are credited as songwriters, while production was helmed by Costanzo under the stage name Mumble C. According to Costanzo, the song is about feelings of elation he experienced while attending an outdoor electronic music festival.