"Work Bitch" (edited for radio as "Work Work") is a song by American singer Britney Spears released as the lead single for her eighth studio album, Britney Jean (2013).
It was written by Spears, will.i.am, Otto Knows, Sebastian Ingrosso, Anthony Preston, Derek Weintraub and Ruth-Anne Cunningham. The song's production was handled by Ingrosso, Jettman and Adams, while vocal production was done by Adams and Preston.
"Work Bitch" made its premiere on September 15, 2013, on iHeartRadio and select Clear Channel radio stations and was released as the lead single from the album on September 16, 2013, by RCA Records from the record alongside a clean version titled "Work Work".