Katty perry is not the first, and she won't be the last celebrity to have a wardrobe malfunction!
Ok, so it could've been worse (or better, if you're a boy with a crush on Katy Perry) ...but her strap was definitely slipping, and her nipple was trying to escape.
It's made us wonder, surely she has some sort of support built in to her dress? It's just not fair if her boobs are naturally that big AND perky!
