Everybody loves Dave Grohl – and it makes sense, as the guy totally rocks. It also means that he attracts interesting stage invaders, such as John Travolta.

Playing Rockville 2018 in Jacksonville, Florida, and following an ace appearance by Mr Billy Idol for a ramshackle assault on John Lennon’s Gimme Some Truth, the Foo Fighters launched into Grease classic You’re the One That I Want… and then John Travolta ambled on-stage.

Sadly it was just a walk-on, walk-off thing, but Dave ably took on the vocals – until it was all too much and he had to end the show. Not!

Here’s some ShakyVision footage, courtesy of YouTube user Die Young Music.

Speaking of Grease, the movie celebrates its 40th anniversary this year, and a 4K Ultra HD edition is due for Australian release in June.