The Foo Fighters have been rocking out some great covers and having a few surprise appearances at their shows of late, but their choice on Sunday night was definitely out there.
Headlining Welcome to Rockville in Jacksonville, Florida, The Foo Fighters jammed out on The Grease classic "You're The One That I Want" with none other than John Travolta appearing briefly on stage.
Travolta, who is in town filming the Fred Durst directed Moose, was apparently checking out the Foos set from the side of the stage.
Later in the show, Billy Idol joined Grohl and the gang for a cover of John Lennon’s "Gimme Some Truth".
What's the best cover version of a song? Which do you like more, the cover or the original?