Foo Fighters played a special gig in Los Angeles on Saturday night to celebrate Dave Grohl's 46th birthday.
The rockers brought several guests on stage over the course of the night, including Jack Black and Kyle Gass of Tenacious D, Nick Oliveri (formerly of Queens of the Stone Age), David Lee Roth and more.
One of the most surprisingly awesome collaborations was their cover of 'School's Out', which saw them joined by Alice Cooper for the run-through of his biggest hit.
You can watch the video below:
