Thomas Baptiste Morello (born May 30, 1964) is an American guitarist and activist. He is best known for his tenure with the band Rage Against the Machine and then with Audioslave. Morello is currently a touring musician with Bruce Springsteen and the E Street Band. He is also known for his acoustic solo act called The Nightwatchman, and his latest group Street Sweeper Social Club. Morello is also the co-founder (along with Serj Tankian) of the non-profit political activist organization Axis of Justice, which airs a monthly program on Pacifica Radio station KPFK (90.7 FM) in Los Angeles.