"It was a habit that eventually occurred when the pain got so bad with the hip," she said. "I was just numbing, numbing, numbing myself and then sleeping it off and then getting onstage, killing it in pain, then getting off and smoking, smoking, smoking, not knowing what the pain was."

She decided to quit the drug on the insistence of her friend, the ever-convincing performance artist Marina Abramovic, who recently gotJay Zto rap "Picasso Baby" forsix hours and Gaga tostrip nakedfor an artistic short film. "She said, 'OK, you're coming to my house. No television, no computer, no marijuana, no nothing, no food. For three days, art only. You eat only art,'" Gaga said. "I cold-turkeyed. For weeks and weeks, I didn't smoke at all. And now I smoke a little bit at night, just, you know, for fun – but not to cope. That's the difference. Marina was the only person who could get me to do that, and it was not intended to be rehab."