Tom Morello is a Grammy winning rock and heavy metal guitarist best known for his work with the bands Rage Against the Machine and Audioslave, as well as his work as an acoustic artist under the moniker The Nightwatchman. He was featured as one of the guitarists in Rolling Stone's "The Top 20 New Guitarists" article. He was also ranked #26 on Rolling Stone's list of the "100 Greatest Guitarists of All Time".