Best & Worst-Dressed at The Grammys!

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Who topped our list this year?

From Beyonce's two-toned Osman Yousefzada pantsuit to Carrie Underwood's intricate Roberto Cavalli gown, ET's Rocsi Diaz counts down the best and worst-dressed ladies at the Grammys.

Video: The Grammys' Most Outrageous Fashion

Click the video to reveal Rocsi's picks!