He filled Jethro Tull's guitar slot in late 1968, following the departure of Mick Abrahams and a brief cameo from Tony Iommi, who used his experiences to take Black Sabbath to the next level.

A year later, they'd slimmed down, found a new name and invented heavy metal. Few bands are so inextricably linked with a ...

It's impossible to narrow down Ozzy Osbourne and Black Sabbath's most important and influential songs to just 15, but these ...