Audio Bullys are two British producers who sing and rap over garage house and hip-hop tracks. Sometimes on Generation, the group's proper album, that description sounds exactly as you'd imagine, with Simon Franks delivering the hook (like in "I Won't Let You Down") over a kinetic beat. In contrast, "Shot You Down," the duo's big club hit, doesn't feature Franks at all, just the silky sampled voice of Nancy Sinatra declaiming the chorus over a funky tribal house beat. Franks and partner Tom Dinsdale are talented producers, and their penchant for vocally swaggering over their tracks seems very British. But their outsize personalities can grow annoying (in particular "Made Like That," a would-be posse rap cut with Franks and guests Mr. Fox and the talented Roots Manuva), undercutting Generation's potential as a fresh block-party rocker.