Karina Smirnoff is currently competing with partner Ralph Macchio on the TV celebrity dancing contest, and tells WENN it's never easy to disrobe in public.

She says, "I wasn't sure I wanted to be naked on a billboard when I posed for PETA but they showed me this video of baby seals being slaughtered for their fur and I was onboard."

The dancer is engaged to wed baseball star Brad Penny.