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Karina Smirnoff bares all in a new PETA ad.

According to USA Today, the "Dancing With the Stars" stunner, 31, who just called off her engagement to Maksim Chmerkovskiy, appears in the I'd Rather Dance Naked Than Wear Fur campaign.

The ad was shot by celebrity photographer Robert Sebree.

"I did wear fur, especially when I was growing up in the Ukraine," she says.

She says she stopped wearing it after seeing video footage of baby seals that were killed for their skins.

It's cruel "when we take advantage of an innocent animal that cannot defend herself," she says.

See another famous star who has sworn off fur

Adds Smirnoff, "There are ways of being warm and being fashionable without being cruel."

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