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Jennifer Lopez pulled out all the stops for her 2000 appearance at the Grammys, stepping out in a plunging green dress. The exotic Versace number was made of silk chiffon and fastened together at the midriff with a glittering brooch. The dress was so iconic it earned a place in The Grammy Museum in Los Angeles. Photo: © Getty Images
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Always one to make an entrance, Lady Gaga arrived at the 2011 Grammys ceremony concealed in a replica egg. When the egg "hatched" on stage, Gaga emerged from the shell in a gold skirt, cropped top and hat. Photo: © Getty Images
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Rihanna chose a dramatic black Armani number in 2012. Her inspiration: Michelle Pfeiffer in Scarface. Photo: © Getty Images