"I didn’t realize then that I would never see Ozzy again after that night," Butler writes of the July 5 "Back to the Beginning" show in England.

Black Sabbath bassist Geezer Butler shared memories of Ozzy Osbourne's final performance before the rock legend's death at 76, reflecting on their 57-year friendship.

Just weeks after the curtains closed on the pioneering rock band’s final gig together, frontman Osbourne died at age 76 on July 22. Now, in an essay for The Sunday Times, the bassist, 76, pulled back the curtain on his “57 incredible years of friendship” with Osbourne — from the band’s formation to its farewell concert.