To cope with a hip injury she suffered earlier this year, Lady Gaga says she smoked "15 joints a day. No tobacco. A day...
"It was a habit that eventually occurred when the pain got so bad with the hip," she tells UK's Attitude mag. "I was just numbing, numbing, numbing myself and then sleeping it off and then getting on stage, killing it in pain, then getting off and smoking, smoking, smoking, not knowing what the pain was."
When she felt better, Gaga, with the help of her friend Marina Abramovic, went cold turkey. "For weeks and weeks I didn't smoke at all," she explains. "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."
Gaga's latest album, Artpop (available Tuesday), includes songs titled "Dope" and "Mary Jane Holland."
Last year in Amsterdam, she smoked a joint on stage that was passed to her and then wore a pot-leaf t-shirt.