Rap metal has been around ever since 1986 when Run-DMC and Aerosmith joined forces for a remake of "Walk This Way", but it took nearly a decade for Rage Against the Machine to bust the floodgates wide open. Soon after, a stream of percussive hellraisers including Korn, Downset, and Deftones infiltrated the metal market, and they, in turn, sired a new breed fronted by acts like Snot and Limp Bizkit. Three Dollar Bill Y'All, Limp Bizkit's debut album, is a tempestuous collection of divergent styles. Unlike metal acts that try to get "dope", but lack the hip-hop background to legitimately fuse the two genres, Limp Bizkit--which features Wes Borland and House of Pain member DJ Lethal--have the know-how to groove and grind. And instead of launching a one-dimensional Blitzkrieg, Limp Bizkit mixes up its rhythms and tempos to keep its listeners guessing. --Jon Wiederhorn