Lock Up was a rock band that featured Tom Morello on guitar before Rage Against the Machine was formed. The band was founded by the original guitar player Mike Livingston (formerly of The Mau-Mau's) and Kevin Wood on bass. They had previously played together in the band Ella and the Blacks, which also included Brian Grillo and Brendan Mullen (founder of The Masque, the first L.A. punk rock club). Grillo became Lock Up's lead singer. Grillo had worked several years before with Martin Atkins in the latter's Brian Brain project, and then was known in Los Angeles for fronting Brian Grillo's Wild Coyote Review.