Black, 55, compared Osbourne to another legendary hellraiser by saying he had: “so much charisma, the Jack Nicholson of rock ... You best believe Ozzy could take it down a notch.
Introducing Ozzy in front of a star-studded audience ... ousted from Hollywood and jeopardizing his upcoming movies. 'JackBlack is still best friends with Kyle Gass,' an insider told ...