The superstar, who was honored with the Fashion Icon award at Monday's ceremony, admitted that she called Anna Wintour a "bitch" in a text message.
Opening her acceptance speech by saying that she couldn't "believe I'm allowed in here," Gaga -- wearing a Mugler gown and changing into a studded thong for her stage appearance -- continued on to tell the story of how she was informed that she had won the much-coveted prize: "When I was told I had won this award, [US Vogue editor-in-chief] Anna Wintour sent me a text message...and I actually thought it was Anna Trevelyan, who is one of my close friends and Nicolas's [Nicolas Formichetti, Gaga's stylist] assistant..so my reply was: 'Yes, bitch, we did it!'...I got a reply that said: 'How lovely!'"
But the fashion-forward singer also charmed the audience by expressing heartfelt gratitude to fashion ("What fashion means to me...I always felt like I made it before I had made it because of all of you.") and admitting that she was nervous before coming on stage, but her 19-year-old sister -- who studies fashion at Parsons -- calmed her down by saying: "Don't be nervous; this is the first time, and if you ever win again, it will never feel as good as it feels right now."
Watch the officially released video at http://youtu.be/HLWQMZyEZqk.
A clip of designer Marc Jacobs's acceptance speech for his Lifetime Achievement award is available at http://youtu.be/ryt_rXxKlW4.