Black Sabbath

The all-star celebration has been announced as the singer's last-ever live performance.

"I’m the one that said, 'I don’t know if we should do it.'"

The singer says training for the gig is "like starting all over again."

On their first tours apart, Black Sabbath and Ozzy Osbourne took different approaches to their shared back catalog.

See videos and the full set list from the performance.

Rock's biggest acts entered the new decade with new lineups, new sounds and new facial hair.

Guns N' Roses and Tool have also been added to July's star-studded "Back to the Beginning" concert.

Keeping the big game rocking!

Prince of Darkness "didn't have a chance to say goodbye to his friends, to his fans," Sharon Osbourne says.

Star-studded 'Back to the Beginning' show will also feature dozens of guest stars.