Lady Gaga became dependent on marijuana while recovering from hip surgery

... white devil.' " Gaga, whose real name is Stefani Germanotta, eventually kicked the cocaine habit and started studying yoga , which she continues to do every day to keep herself healthy - physically and emotionally. "I do yoga, I do Bikram and I run, ...

http://www.examiner.com/article/lady-gaga-smoked-15-joints-a-day-while-recovering-from-hip-surgery