Rage Against the Machine is an American rock band formed in Los Angeles in the early 1990s around Zack de la Rocha, Tom Morello, Tim Commerford and Brad Wilk. The group became known for an explosive sound blending rap, metal, funk, punk and alternative rock, driven by Tom Morello’s inventive guitar work and Zack de la Rocha’s forceful vocals. With albums such as Rage Against the Machine, Evil Empire and The Battle of Los Angeles, the band became one of the most influential acts in rap metal and politically charged rock.