With the exception of instrumental tracks, there are a total of 20 songs from Sabbath's albums with Osbourne that never made the cut live, according to Setlist.fm. Therefore, there may have been a time where a song was played for a specific event that wasn't a concert.

Ozzy Osbourne has provided an update on his scheduled performance with rock band Black Sabbath this summer. The 76- year-old rock icon is due to reform with his bandmates to play a final concert, titled Back To The Beginning,

Why are Black Sabbath coming back? Who else is on the bill? Can I still get tickets? We answer all your questions about this summer’s Back To The Beginning extravaganza