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Stars' Favorite Winter Sports!

From Gwen Stefani to Hugh Jackman, see how celebs are staying fit as the temperatures drop

GWEN SLEDS WITH HER KIDS!

Famously fit Gwen Stefani loves to be active with her little boys. By playing with her kids, she gives them an early start enjoying exercise, in Mammoth Lake, Calif. – and she gets the bonus benefit of the tush-toning walk up the hill!