WATCH: Foo Fighters Bring John Travolta, Billy Idol Onstage

Photo credit Photo: Marty Rosenbaum/WXRT

In the latest installment of “Dave Grohl does awesome things,” the Foo Fighters frontman covered the Grease classic “You’re The One That I Want” … which sounds like an odd cover for a rock concert until it becomes clear that Grease star John Travolta was watching the show backstage.

Of course, Grohl brings him out from behind the curtains to introduce him to concert-goers. Watch Danny Zuko’s brief appearance in the fan-shot footage below!