They created some incredible songs during their run but there's one Black Sabbath song that Ozzy Osbourne considers to be their most important

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.

Tickets will go on sale on February 14. As per the Guardian, Black Sabbath have sold a reported 75 million albums worldwide and remain amongst the most influential heavy rock band in history. Their first eight albums featured Osbourne and included the UK No 1 Paranoid as well as classics such as Master of Reality and their 1970 self-titled debut.