Black Sabbath had left the band. Walker, who was at that time fronting a band called Mistress, flew to Birmingham from California in late 1977 to write material and rehearse with Black Sabbath. On 8 January 1978, Black Sabbath made their only live performance with Walker on vocals, playing an early version of the song "Junior's Eyes" on the BBC Television programme "Look! Hear!" Walker later recalled that while in Birmingham he had bumped into Osbourne in a pub and came to the conclusion that Osbourne was not fully committed to leaving Black Sabbath. "The last Sabbath albums were just very depressing
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