Lady Gaga may still have been doing drugs had her father not stepped in and made her kick the serious habit.
The pop sensation, whose real name is Stefani Germanotta, revealed that she had had a drug past while she was younger.
She thanked her father for helping her realise where she was headed.
The 22-year-old also insisted that she had maintained her distance from the banned substance ever since she gave up the deadly habit.
"I don't like to talk about it too much but there were drugs, serious drugs..." Contactmusic quoted her as saying.
"My dad thought I'd lost it. With the drugs it was his reaction that pulled me back. I didn't go to Alcoholics Anonymous or Narcotics Anonymous. I did it myself.
"I have such a fear of failure, I didn't want anything to make me fail. So I stopped. I still drink and party, but there's no darkness now. Just a lot of fun," she added.