Ozzy Osbourne and Black Sabbath are reuniting for one last time, to play a fund-raising concert in Birmingham on 5 July.

The heavy metal pioneers will headline a spectacular one-day festival at Villa Park, featuring dozens of bands they inspired, including Metallica, Pantera, Slayer, Gojira and Anthrax.

The concert will mark the first time that Black Sabbath’s original line-up – Ozzy Osbourne, Tony Iommi, Geezer Butler and Bill Ward – have played together in 20 years.

Osbourne, who has largely been forced to stop touring due to a combination of Parkinson’s and spinal injuries, will play a short solo set before joining his bandmates.