Fashion Rocks Best Dressed

See how J.Lo, Nicole Richie, Fergie and more ruled the red carpet at this N.Y.C. music and style extravaganza. By Andrea DeSimone

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CARRIE UNDERWOOD

After attending fashion shows during the day, the former American Idol slipped into a patchwork Georges Chakra party dress and accessorized with a Daniel Swarovski clutch and Mikimoto drop earrings.