Tool is a Los Angeles, California based rock band that includes Maynard James Keenan (vocalist), Danny Carey (drummer), Adam Jones (guitarist), and Justin Chancellor (bassist). They have won three Grammy Awards. The band had originally started out as heavy metal but has become more alternative metal - and more popular - as the years have progressed. The band has also been described as a fusion of progressive rock and art rock due to the influence of both the band members and the visual influence they carry on tour and on album artwork. Read more about Tool - Music