Many believed Steven Tyler might never perform again, but he has since made a few surprise appearances. On July 5th, he took the stage at the 'Back to the Beginning' Black Sabbath farewell concert in Birmingham,

After Metallica’s performance, Osbourne, 76, came out on stage and performed a five-song set by himself, before he was joined by his former bandmates Tony Iommi, Bill Ward and Geezer Butler for four of the group’s songs.