Osbourne's first experience with cocaine was in early 1971 at a hotel in Denver, Colorado, after a show Black Sabbath had done with Mountain. He states that Mountain's guitarist, Leslie West, introduced him to the drug. Though West is reluctant to take credit for introducing Osbourne to cocaine, Osbourne remembers the experience quite clearly: "When you come from Aston and you fall in love with cocaine, you "remember" when you started. It's like having your first fuck!" Osbourne says that upon first trying the drug, "The world went a bit fuzzy after that."