"Work Bitch" is a song by American singer Britney Spears released as the lead single for her eighth studio album, Britney Jean. It was written by Spears, will.i.am, Otto Knows, Sebastian Ingrosso, Anthony Preston and Ruth-Anne Cunningham. The song's production was handled by Ingrosso, Jettman and Adams, while vocal production was done by Adams and Preston. From Wikipedia
