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 will come out of touring retirement and reunite with the full Black Sabbath lineup for the first time in 20 years.

“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.

Black Sabbath fans were furious after seeing the hefty price tag on tickets for the band's gig in Birmingham this summer

Black Sabbath frontman Ozzy Osbourne will reunite with his original bandmates this summer for his final live performance.

Scheduled for July 5 at Villa Park, the show will feature Osbourne playing a short solo set, followed by him joining Sabbath for what's described as his "final bow." There will also be performances by Metallica, Slayer, Pantera, Gojira, Halestorm, Alice in Chains, Lamb of God, Anthrax and Mastodon.