Yeah (ft. Ludacris & Lil' Jon) | Usher -
"Yeah!" is credited with popularizing the sub-genre—a fusion of melodic R&B and the raw, high-energy "crunk" sound of the South.
Produced by Lil Jon , who initially offered the beat to Usher after it was rejected by rapper Mystikal. Usher - Yeah (ft. Ludacris & Lil' Jon)
Features classic Roland TR-808 drum sounds and a signature "gliding" flute synth in the chorus. Usher - Yeah (ft. Ludacris & Lil' Jon)
Generally cited in G Minor (though some analyses point to D Major roots). Usher - Yeah (ft. Ludacris & Lil' Jon)
Released in January 2004, "Yeah!" became a "cultural phenomenon" that cemented Usher's status as a global superstar.