Lil Jon's mix of the YoungBloodZ smash "Damn!" heralded a new sound in Atlanta, with its buzz-saw Novation synthesizers instantly making earlier styles seem outdated. His carefully stitched thread of a beat makes Ying Yang Twins' "Salt Shaker” a perfect club soundtrack. And a few years later, Lil Jon's groove for Too $hort's "Blow the Whistle" helped define the Bay Area's new hyphy sound.