What are you doing, Dave? Mr Grohl and his band of merry minstrels have let loose some rehearsal footage of them mashing up John Lennon’s Imagine and Van Halen’s Jump.

It’s a mashup in the truest sense of the term, too, as it’s John Lennon’s music with Van Halen’s words.

Again, really.

We’re not sure what we think about it, but it is certainly much better than being within earshot of any music store in the late ’80s, when that intro to Jump was the equivalent of Stairway to Heaven for keyboard players.

Jump into JB Hi-Fi and grab Foo Fighters’ latest Concrete and Gold.