Foo Fighters Team Up With Zac Brown To Cover Black Sabbath’s ‘War Pigs’ [VIDEO]

Foo Fighters are playing with special guests all week long on the Late Show with David Letterman. Last night Zac Brown was the special guest.

Foo Fighters kicked off their week-long residency last night with a rocking performance of Black Sabbath's "War Pigs" with Zac Brown on guitar and shared vocals.

Each night, the band will be performing alongside one of the special guests that feature on their new album 'Sonic Highways'.

You can watch the video of the performance below and let us know what you think in the comments!