Alice Cooper was in Hollywood performing Thursday night, so it's no surprise that invited a Hollywood star to join him. Johnny Depp brought his guitar and helped Alice with covers of The Doors' "Break on Through," The Beatles' "Revolution," Jimi Hendrix's "Foxey Lady" and The Who's "My Generation." He also played on Cooper's own "I'm Eighteen," "Under My Wheels," "Poison" and "Schools Out."

This was not their first time onstage together, nor likely to be the last. Depp will join Cooper at his annual Christmas Pudding benefit next Saturday in Phoenix. Cooper had a cameo in Dark Shadows, which starred Depp.