Showing up at the Grammys half-naked has been a trend for years -- that is, until this year, when a new dress code was enacted to prevent provocatively memorable moments such as Lady Gaga parading around in a thong with no stockings. Most celebs stuck to the rules, but a few found ways to skate by while still showing a little skin. Hit up the gallery to see who did it right, who did it wrong and who did it in a way that will be remembered for years to come.
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