The "School of Rock" alum was joined by a band of teenagers, including Tom Morello's so on guitar and Scott Ian's son on bass.

Sid Wilson proposed to Kelly Obsourne surrounded by her parents, Sharon and Ozzy Osbourne, as well as "all of our friends."

Black Sabbath performed “War Pigs,” “N.I.B.,” “Iron Man” and “Paranoid” — while Osbourne, 76, also performed solo songs such as “I Don’t Know,” “Mr. Crowley,” “Suicide Solution,” “Mama, I’m Coming Home” and “Crazy Train.”