'LADY GAGA: Just Dance - The Biography by Helia Phoenix' says that Gaga used to lock herself in her room snorting "bags and bags" of the drug to get inspiration for her music and got dangerously high on LSD as she strove to emulate her pop heroes, News of the World reported.

"I thought I was gonna die. I wanted to be the artists I loved, like Mick Jagger and Andy Warhol and I thought the only way to do it was to live the lifestyle," the book quotes Gaga as saying.

"My cocaine soundtrack was always the cure. I would lock myself in my room and listen to 'Never Enough' on repeat while I did bags and bags of cocaine. It was about being an artist. I wasn't a lazy addict. I would make demo tapes and send them around. At the time I didn't think there was anything wrong with me, until my friends said, 'Are you doing this alone?' Um, yes. Me and my mirror," she said in the book.

The 23-year-old outrageous singer who stole the show at last week's Grammy awards was eventually rescued by the ghost of her dead auntie, who still lives inside her.