Ozzy Osbourne is back on stage. The legendary musician, 73, had a surprise performance at the 2022 Birmingham Commonwealth Games in England on Monday night. This marked his first live performance since his "life-altering" surgery in June. The "Crazy Train" singer put on a show alongside his former band member, Tony Iommi. Videos online show the stars performing "Paranoid," the hit song from their time in Black Sabbath.