jlo and puffyDon't expect any wardrobe malfunctions at the 55th annual Grammy Awards this Sunday. There is a new policy in place banning booty- and boob-revealing looks, according to Deadline Hollywood. A memo warns stars they may be turned away if they show up over-exposed:

... Thong type costumes are problematic. Please avoid exposing bare fleshy under curves of the buttocks and buttock crack. Bare sides or under curvature of the breasts is also problematic. Please avoid sheer see-through clothing that could possibly expose female breast nipples. Please be sure the genital region is adequately covered so that there is no visible “puffy” bare skin exposure ...

What are RiRi and Lady Gaga to do? Those outrageous outfits are half the fun. In fact, if this rule had been in place in years past, many of the most memorable -- and scandalous -- Grammy looks would have never seen the light of day. Take a look at the crazy couture we would have missed out on!