In his upcoming posthumous memoir Last Rites, Ozzy Osbourne details the myriad hurdles he had to overcome to perform at his Back to the Beginning farewell show, his mounting fear leading up to the big event — and Sharon Osbourne's backup plan in case he couldn't perform. Because the show kept getting bigger." I kept saying to Sharon, we’d better get a video made ’cos there’ll be an empty stage. Sharon Osbourne's 'Backup Plan': 'Get Up There and Be Ozzy'Finally, Sharon told Ozzy he was getting on the stage whether he sang or not. "Eventually Sharon said, 'Look, there’ll be no backup plan.