Artists from the worlds of hip-hop and rock come together to celebrate the fast-paced life of motorcycle gangs on this soundtrack.

Artists from the worlds of hip-hop and rock come together to celebrate the fast-paced life of motorcycle gangs on this soundtrack. Redman leads off the set with the funk-infused "Ride," which features E3, and is perfect for late-night cruising. The soundtrack features some interesting collaborations, too—some of which work and some of which don't. Papa Roach and N*E*R*D hook up on "Don't Look Back," a rock/funk hybrid that is easily the set's shining moment. Ja Rule, Swizz Beatz, and Metallica don't have nearly the same success on "We Did It Again." As a collaboration, the track is an uneven clash of loud voices and still louder guitars. Indie hip-hop darling Non Phixion earns points for its remix of its own "Say Goodbye to Yesterday." The melancholy track, produced by Necro, provides the postcard-perfect backdrop to the quartet's thought-provoking lyrics. Other standout tracks include Mystic's "No Competition," Meshell Ndegeocello's Lisa Bonet-inspired "Liliquoi Moon," and Mos Def's melodic "Kalifornia."—RH