David Draiman, the voice behind global metal hits, was booed during Black Sabbath's farewell gig in Birmingham. The backlash was not about the music; it was political.

Disturbed’s David Draiman has responded to boos during his July 5 performance at Black Sabbath’s farewell concert. Draiman joined an all-star lineup to perform Sabbath’s ‘Sweet Leaf’ and Ozzy Osbourne’s ‘Shot In The Dark.