S8tM4ellHdjohnson S8tM4ellHdjohnson 06-05-2017 History contestada Which bands collaborated to blend rock and rap music and helped hip-hop cross musical genres and color lines? Beastie Boys and Kurtis Blow Run-D.M.C. and Aerosmith Sugarhill Gang and Aerosmith Run-D.M.C. and Metallica