Pop superstar Lady GaGa became addicted to marijuana after suffering a hip injury last year (12).
The Poker Face hitmaker underwent an operation earlier this year (13) after she sustained a labral tear in her hip, and she has now revealed she eased her pain by smoking up to 15 joints a day.
She tells Attitude magazine, "I was smoking fifteen joints a day... It was a habit that eventually occurred when the pain got so bad with the hip. I was just numbing, numbing, numbing myself then sleeping it off, then getting on stage, killing it in pain, then getting off and smoking, smoking, smoking, not knowing what the pain was. F**k if I know what hurts the most, you know?"
The singer admits she tried to kick the addiction, but found her cravings would creep back constantly, adding, "I would break the habit and it would sneak back in and I would break it and sneak back in."
However, the star has since managed to cut down on the habit, adding, "Now I smoke a little bit at night just, you know, for fun. But not to cope, that's the difference. I'm the soberest I've ever been in the past five years."