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

Sharon Osbourne gave an update on how Parkinson’s disease has impacted husband Ozzy Osbourne’s legs as the musician prepares to reunite with Black Sabbath in July for his final concert.

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