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 performance, called "The Back to the Beginning," will cap off an all-day event featuring sets from several iconic heavy metal acts.

Ozzy Osbourne has announced his final show — and it will feature a reunion of the original lineup of Black Sabbath for the first time in 20 years.

Black Sabbath frontman Ozzy Osbourne will reunite with his original bandmates this summer for his final live performance. The heavy metal star, 76, will rock Birmingham's Villa Park on 5 July, as part of an all-day event called 'Back to the Beginning'.