Thomas Baptiste "Tom" Morello (born May 30, 1964) is a Grammy Award-winning American guitarist best known for his tenure with the bands Rage Against the Machine, Audioslave, his acoustic solo act The Nightwatchman, and his newest group, Street Sweeper Social Club. He was featured as one of the guitarists in Rolling Stone's "The Top 20 New Guitarists" article and was ranked #26 on Rolling Stone's list of the "100 Greatest Guitarists of All Time". He is also an outspoken political activist.