So this happened last night and it's pretty cool. You know deep down that Zac Brown is a total rocker!
Zac Brown Band and Dave Grohl have a history of collaborating -- Grohl produced one of the band's EPs, and Brown did backing vocals on the Foo Fighters album Sonic Highways . And they teamed up again last night (Thursday) in Atlanta.
Watch them cover "Enter Sandman" by Metallica with Grohl on vocals and the guitar solo done on fiddle by Jimmy DeMartini -- it's on YouTube .