Johnny Depp took the stage with Alice Cooper to perform a surprise gig at The 100 Club in London last night. Johnny joined the legendary musician to take on "I'm Eighteen" and "School's Out" in support of Cooper's new album Welcome 2 My Nightmare. Alice Cooper reportedly introduced the A-list star on stage as "the blues master, Mr Johnny D from Kentucky," and later joked that the actor could have a permanent place in the band. Johnny Depp, who scored number two in your 10 sexiest celebrity men 100 list and the very top spot in the 2011 PopSugar 100, showed off his toned and tattooed arms as he rocked out with Alice. Johnny is currently in London shooting his latest Tim Burton film, Dark Shadows, and Alice Cooper is rumored to be returning the favor and making a cameo in the movie.