Song writer and hit maker, Lady Gaga said it all. In her interview, Lady Gaga admitted that when she was 19 years old, she made a close friend with cocaine. She was addicted to it. We all have our own dark past and Lady Gaga just showed and disclosed her dark past to all. This is a good sign for this celebrity. She really has moved on and her past was her source of inspiration to succeed in life. Today, Lady Gaga is considered as one of the most influential musician.