They're not the most obvious of bedfellows, but it seems that Foo Fighters and Guns N' Roses share at least a little musical DNA, if the below performance is anything to go by.

The two rock bandsĀ  are headliners of the Firenze Rocks festival in Florence, Italy on separate days - but Dave Grohl and co. invited members of the band on stage to perform 'Appetite for Destruction' classic 'It's So Easy' last night.

Axl Rose, Slash and Duff McKagan joined their counterparts - and it's not the first time they've performed together, either - during their headline slot, and luckily it was captured on camera.

Foos N' Roses supergroup, anyone?

Watch it below: