Stars Who've Posed for PETA

The R&B singer also joined in on PETA's "Ink, Not Mink" campaign and during his photo shoot talked about learning the truth behind the fur trade. "Every piece of fur that you see out there and people wearing, there's an animal [who's] lost...his or her life," Mario said. "I've been offered deals to wear fur...for tour and for stage," but he's passed those up.

(Photo: Courtesy PETA)