Osbourne, who battled Parkinson’s before his death, sat onstage in a black leather chair as he performed for the 42,000-person crowd. He sang five songs by himself, before he was joined by his former bandmates for four Black Sabbath songs.

Geezer Butler honored Ozzy Osbourne with a moving tribute, reflecting on their early days, lifelong bond, and emotional final show in Birmingham.

Black Sabbath bassist Terence 'Geezer' Butler shared an essay about his friendship with Ozzy Osbourne and their final gig together before the rocker's death at age 762. In the essay, Butler said he 'wasn’t prepared to see how frail he was.

He might be famous as Guns N' Roses punk bassist, but Duff McKagan has always professed a love for music in many forms, with a longstanding relationship to both Sabbath and Ozzy Osbourne, even playing on the latter's last two albums.

In an emotional essay, Geezer Butler recalled his decades-long friendship with Ozzy Osbourne and Black Sabbath's final rehearsals.