"Yeah!" is a song by American recording artist Usher. It was written by Usher, Lil Jon, Sean Garrett, Patrick J. Que Smith, Ludacris, Robert McDowell and LRoc, and features guest vocals from Lil Jon and Ludacris. It was also produced by Lil Jon, who incorporated crunk and R&B—which he coined as crunk&B—in the song's production. The song was released as the lead single from Usher's fourth studio album Confessions (2004) on January 27, 2004, after Usher was told by Arista Records, his label at the time, to record more tracks for the album.