Black sabbath vocalist Ozzy Osbourne spoke about his bandmate, guitarist Tony Iommi. In an interview with Metal Hammer, he said:

People always say we invented heavy metal. But I like The Kinks, Zeppelin and The Who – and I think we spawned from that.

But I do think that Tony Iommi, for what it’s worth, is the king of all demonic riffs. There’s just no one to fucking touch him. Considering he had his fretboard fingers chopped off – to this day I’m still amazed he knows he’s touching the strings.

He’s amazing. He’s one of these guys that you can give any instrument to and he’ll come out of his dressing room playing something on it. It could be the bagpipes, or anything really.”

Black Sabbath ended their career. You can watch the final show from below.