Ten year-old thread, I know. But I think I have something to offer here.
In 2002, Atomic Kitten played the Party in the Park, singing "Whole Again". Search "whole again pitp" and the video will pop up first under the ad(s). Jenny is stage right, screen left, channeling Twiggy in high boots and a short dress with a plunge neckline. At about 1:23, Jenny gestures with her right hand. The next day's tabloids made it front page news -- Jenny Flashes the Crowd, etc.
I don't know about the crowd, but she bull's-eyed me and the camera.
Some years after, she did an hour for British television on the female breast in Brit culture. She capped off the hour presenting a cast of her chest from collarbone to floating ribs. Still perfect.
Not to annoy the Swifties (I respect the woman), but ... Beat that, Taylor!