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.

Terence 'Geezer' Butler shares "57 incredible years of friendship," from that first barefoot knock on his door to the bittersweet farewell at Villa Park.

As millions of Ozzy Osbourne fans found out on the MTV reality show "The Osbournes," the Prince of Darkness wasn't anything like wild his rock-star stage persona - at home, he was sweet, gentle and mischeivous,