Yeah! is a song by American R&B singer Usher, written by American songwriters and producers Lil Jon, Sean Garrett, Patrick J. Que Smith, Ludacris, Robert McDowell and James Elbert "LRoc" Phillips for Usher's fourth studio album, Confessions (2004). The track was produced by Lil Jon which he combined crunk and R&B genres, triggering positive reviews from music critics. The song features Lil Jon and rapper Ludacris. The song was released as the lead single from the album in early 2004 Read more on Last.fm.