Grammy Quick Changes: What's Her Best Look?

Glam on the red carpet, funky onstage – which style was hottest? Vote on Beyoncé and more! By Melissa Liebling-Goldberg

RIHANNA photo | Rihanna

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RIHANNA

The singer switches out of her cobalt blue Zac Posen frock on the red carpet to an all-feathered corseted frock for a performance that included "Umbrella" and "Don't Stop the Music."

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Credit: Wireimage; Landov

Updated: Sunday Feb 10, 2008 | 11:00 PM EST