His first two solo albums, “Blizzard of Ozz” and “Diary of a Madman,” featured the brilliant guitar work of the young Californian Randy Rhoads, who revolutionized heavy rock guitar in just those two ...

Music stars, fans and former bandmates have paid tribute to Ozzy Osbourne, the frontman of pioneering heavy metal band Black Sabbath, who has died at the age of 76.