Tool

Tool is an American rock band, formed during 1990 in Los Angeles, California, that consists of drummer Danny Carey, bassist Justin Chancellor, guitarist Adam Jones, and vocalist Maynard James Keenan. Emerging with a heavy metal sound on their first release, when the genre was dominated by thrash metal, they were later seen at the top of the alternative metal movement with the release of their second full-length studio album Ænima in 1996. After an ongoing evolution of their sound and continuous efforts to unify musical experimentation, visual arts, and a message of personal evolution on Lateralus (2001), their most recent album 10,000 Days (2006), as well as respective tours, they are generally described as a style-transgressing act and part of progressive and art rock. Taken from Wikipedia.