Jack Osbourne World Detour". Osbourne was born in London to heavy metal singer Ozzy Osbourne of Black Sabbath, and his wife and manager, Sharon ( Levy). He has two elder sisters, Aimee and Kelly Osbourne, as well as two paternal half-siblings, Louis John Osbourne and Jessica Hobbs, from his father's previous marriage. Osbourne has stated that his childhood was "perfectly happy and contented". For the first six years of his life, he lived in the Chiltern Hills in Buckinghamshire. When he was six, his parents moved the family to Los Angeles, but a year later the family returned to Buckinghamshire. When Osbourne
Ozzy Osbourne 1970s, Osbourne had the unhealthiest lifestyle of them all. Despite this, said Iommi, he was typically the only one left standing when the others were "out for the count". Keyboardist Don Airey said that Osbourne's substance-abuse issues were what caused him to leave the band. Osbourne claims that his first experience with cocaine was in early 1971 at a hotel in Denver, Colorado, after a show Black Sabbath had done with Mountain. He claims Mountain's guitarist, Leslie West, introduced him to the drug. Though West is reluctant to take credit for introducing Osbourne to cocaine, Osbourne says, "When you come