Alice Cooper, Bob Mould and Queen's Roger Taylor Join Foo Fighters

The Foos teamed up with Alice for two of his classics – "School's Out" and "I'm Eighteen" – in front of 65,000 fans at the UK venue.

"If it wasn't for this next person, [Foo guitarist] Pat Smear would never have bought a guitar in his life," head Foo Dave Grohl told the crowd. "Say hello to one of our heroes — Mr. Alice f**king Cooper!"