Prophets of Rage have only been together a few months, but they?re already making waves in the music industry with their eyebrow-raising choice of venues. The group, which consists of members of Rage Against the Machine, Cypress Hill, and Public Enemy, had been slated to perform for 800 Inmates at a California state Prison but were prevented from doing so. So instead, the group decided to Play Outside the Prison walls, so that the Inmates could still hear them.