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.

“The all-star event will celebrate the true creators of heavy metal and will see @OzzyOsbourne play his own short set before joining with Black Sabbath for his final bow,” read the announcement, shared on Osbourne’s X account.

Ozzy Osbourne will reunite with all of the original members of Black Sabbath for the first time in 20 years, in a gig that will be his last and that’s being billed as the “greatest” heavy metal show ever.