"It’s just such heartbreaking news that I can’t really find the words"
The Prince of Darkness played his final show with Black Sabbath less than three weeks ago
It promises “a deeply personal and electrifying farewell”, along with “exclusive behind-the-scenes access and interviews”
Some fans thought they may have been the band that Sharon Osbourne booted from the star-studded line-up
"We raised a ton of money for a great cause and so many great musicians & bands & fans all over the world paid tribute to the ALL TIME greats," Tom Morello wrote on social media
“I wept silently as my heroes fell on their wizardly, mythic sword to bid us farewell”
"Thank you from the bottom of our hearts"
The band were reportedly practising a rendition of one of the metal pioneers’ hits before one of their live shows
The guitarist also admitted that he is experiencing nerves before tomorrow’s massive gig
The star-studded metal show is set to be held in their Birmingham hometown this weekend