The 'Marry the Night' hitmaker insists she had no problem performing in her underwear and found the experience "exciting" because it helped her earn money to further her career.
She explained: "It's quite exhilarating to dress in your underwear and have men coo over you all night. It's quite liberating, if you're into that sort of thing.
"Some people don't like it but for me, I was getting paid to perform so I was very excited.
"I was getting 400 bucks a night, so I could go to Kinko's and get the expensive paper and get it laser-printed and make nice flyers, not like the ones everyone else had. And get my demo tapes copied."
In 2008, Gaga caused a stir when she performed at a music conference in Los Angeles but she revealed she clashed with her record label because they didn't like her image.
She recalled to Britain's Elle magazine: "I put everything I had into this one outfit. And the label called and said 'She has to change her clothes. She always wears the same thing.'
"And I said, 'Don't you want people to recognise me? And remember me? I'll be the girl with the very heavy bangs and the platinum blonde fringe and the black suit with big shoulders and the stick in her hand.' People remembered it."