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Some of our favorite stars lit up the stage at last night’s American Music Awards wearing the night’s brightest trend, shimmering platinum dresses. As much as we love a little sparkle, we usually think that less is more. But these celebs kept their looks from going over-the-top glam by balancing the glitz with simple silhouettes and spare accessories. High School Musical 2’s Ashley Tisdale arrived in a knee-length dress embellished with ...