Tool is an American rock band from Los Angeles, formed in 1990. The lineup includes vocalist Maynard James Keenan, guitarist Adam Jones, drummer Danny Carey, and bassist Justin Chancellor, who joined in 1995. Known for their fusion of heavy metal, progressive, and art rock, Tool blends complex music with visual arts and themes of personal evolution. The band has released five acclaimed studio albums, including Undertow, Ænima, Lateralus, 10,000 Days, and Fear Inoculum, and has won four Grammy Awards. Tool is recognized for their innovative and style-defying approach, global tours, and chart-topping records, maintaining both critical and commercial success while guarding their privacy.