Johnny Depp joined Alice Cooper as the musician's special guest, during an intimate performance at London's famous 100 Club in Oxford Street. <br /><br />Promoting his new album Welcome To My Nightmare 2, Cooper introduced the Pirates of the Caribbean actor as "Johnny D". <br /><br />Originally, Cooper was meant to have been on stage with ex-Guns n Roses guitarist Slash but Depp took his place and performed School's Out and I'm Eighteen with the rocker. <br /><br />While Depp is predominantly known for his acting, he also has a background in music, with him once being a member of the band "P", which included Red Hot Chili Peppers bassist Flea.
