Britney Spears really will be dancing till the world ends -- or her black mesh unitard falls off, whichever comes first.
The pop princess wasn't fazed when she suffered a slight wardrobe malfunction onstage during a recent Vegas show. As a flurry of backup dancers furiously tried to mend her zipper, Brit Brit just kept singing and shimmying to her single "3" -- showing either remarkable professionalism or a total lack of awareness, your pick.