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Stars' Favorite Winter Sports!
From Paris Hilton to Pamela Anderson, see how celebs are staying fit during as the temperatures drop
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MARY-KATE SKATES!
Mary-Kate Olsen looks sophisticated in black while practicing one of winter's most-loved sports at Rockefeller Center in N.Y.C.: ice skating! No ice nearby? You can get the muscle-toning benefits anywhere by following Health.com's free power skating workout.
