I imagine a big, giant, spiky vagina on the stage. Then, we hear moaning, and someone yelling "Push, push, push"
Then, it´s quiet, and we hear "I´m a free bitch, baby"
Then, she climbs out of the vagina, with nippletape covering her nipples, and a thong made out of hair, and a bald cap. Because she was born with heels and pubes. Then she sings born this way, and as the song progresses, she takes off the baldcap, and in the end she says "I was born this way" and climbs into a coffin.
Or she´ll hatch out of a giant egg, like the dough did at the winter olympics in lillehammer 94