The Born This Way singer opened up about cosmetic surgery in a new interview in the May issue of Harper's Bazaar magazine.
Gaga, real name Stefani Germanotta, said: 'I have never had plastic surgery, and there are many pop singers who have.
'I think promoting insecurity in the form of plastic surgery is infinitely more harmful than an artistic expression related to body modification.'
The 25-year-old added: 'And how many models and actresses do you see on magazine covers who have brand-new faces and have had plastic surgery, while I myself have never had any plastic surgery?
'I am an artist, and I have the ability and the free will to choose the way the world will envision me.'
But the pop star admits she isn't immune to the culture in Hollywood.
She said: 'I had all these number one records, and I had sold all these albums, and it was sort of this turning point: Am I going to try and embrace Hollywood and assimilate to that culture?
'I put my toe in that water, and it was a Kegel-exercise vaginal reaction where I clenched and had to retract immediately.
'I ran furiously back to New York, to my old apartment, and I hung out with my friends, and I went to the same bars.'