Photo by Ian Gavan/Getty Images

This Foo Fighters Live Performance Mash Up

has our eyebrows raised and our ears cocked to one side...

Foo Fighters posted this in studio practice the other day...

It's a live performance mash-up of John Lennon's "Imagine" and Van Halen's "Jump"...

It was inspired by a real mash up that surfaced a while ago...

Your thoughts?