LOL! LADY GAGA BUST HER ASS TWICE ON STAGE! IS SHE DRUNK OR IS THEM HEELS TO HIGH?

J.Lo and Adam Lambert at the American Music Awards, Beyonce, as captured on video - and now to that distinguished list of performers who have famously wiped out on stage, we can add Lady Gaga.
Costume queen though she is, her towering stilettos proved too much even for her as she kicked off her Monster's Ball tour in Montreal Friday November 27.

While executing a choreographed dance segment to her song "Teeth," flanked by a cadre of shirtless male dancers, she loses her footing and lands on her backside before quickly getting up and rejoining the number.

And that wasn't the only time she toppled over during that show. She actually fell three times for lucky concertgoers.

"I'm like a drunk supermodel - and I love it," she said, Perez Hilton reported on his Web site.

The blogger added that during her show in Toronto, the following night, she didn't slip once.

Maybe those shoes just needed a little breaking in - or maybe even Lady Gaga isn't above a case of opening night jitters.

Her tour comes to New York's Radio City Music Hall for a 4-show stint beginning January 20.