Alice Cooper appeared as a special guest at a Foo Fighters show at the Forum in Los Angeles on Saturday night, January 10th.

Organized to benefit the Rock School Scholarship Fund, MusiCares and Sweet Relief, it was also planned as a birthday celebration for Dave Grohl, who invited a host of other music superstars to join him, including Alice Cooper, who performed two of his biggest hits, “I’m Eighteen” and “School’s Out,” which was just added to the Grammy Hall of Fame.

Other onstage guests included David Lee Roth, Trombone Shorty, Joe Walsh, Perry Farrell, Zakk Wylde, Nick Oliveri, Slash, Jack Black and Kyle Gass of Tenacious D, and Paul Stanley.