Ozzy Osbourne, following a set with his solo band, was joined by fellow Black Sabbath members to play songs like “Iron Man” and “Paranoid."

The day-long concert special featured standout performances from Osbourne and Black Sabbath, Metallica, Guns n' Roses, Jack Black and more.

The Black Sabbath frontman revealed in 2020 that he had been diagnosed with Parkinson's disease, a nervous system disorder that affects his ability to stand and walk. "It's not a death sentence … It's a mild form of Parkinson's at the moment,