"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’s Geezer Butler is reflecting on the band's final rehearsals with Ozzy Osbourne. In a piece written for The Sunday Times, the band's co-founder detailed how "frail" the late rockstar was in the lead up to their Villa Park 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.