Lady Gaga had corrective surgery on her hip earlier this year and used marijuana as a coping mechanism for dealing with the pain. The 27-year-old singer told Attitude magazine that she was ‘smoking 15 joints a day’ following the tear and breakage of her hip. Gaga said that her smoking became worse when the hip pain was so intense. "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. I would break the habit and it would sneak back in and I would break it and sneak back in." Lady Gaga smoked marijuana to cope with the pain of having hip surgery The star has also said that she turned to drugs at the beginning of her career. She said: "I went through terrible experiences early in my career climbing through swine and swine of men in the music industry - just trying to get somebody to listen to my music and take me seriously as a songwriter instead of trying to get me to b*** them." In a bid to curb her addiction, Lady Gaga eventually signed up to Marina Abramović's intense rehab session earlier this year. This extreme rehab involved the singer to starving herself for three days and finding her way out of the woods while blindfolded. However even though she completed rehab, the singer admits that she still smokes every now and then. She explained: "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."