`` Fuck You '' , called `` Forget You '' or simply `` FU '' on the radio edits , is a song by American recording artist Cee Lo Green . It was released as a single when he was promoting his third studio album , The Lady Killer . , titled `` Forget You '' or simply `` FU '' on the radio edits , is a song by American recording artist Cee Lo Green , released as a single in promotion of his third studio album , The Lady Killer .