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

Ozzy Osbourne‘s Parkinson’s disease has progressed to the point where the musician is no longer able to walk. Speaking on his SiriusXM program Ozzy’s Boneyard this week, Osbourne discussed what fans can expect from his final live performance,

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.