In the mid- and late 1990s came a new wave of U.S. metal groups inspired by the alternative metal bands and their mix of genres.Christe ( 2003 ) , pp. 324-25 Dubbed nu metal , bands such as Slipknot , Linkin Park , Limp Bizkit , Papa Roach , P.O.D. , Korn and Disturbed incorporated elements ranging from death metal to hip hop , often including DJ s and rap -style vocals .