“Mad Men” actress January Jones stripped down to pose completely nude for Mario Testino in a new advertising campaign for Versace Spring/Summer 2011 (more pictures below).

Jason Sudeikis: “I’ve Seen January Jones Naked!”

Donatella Versace explained why she chose January to pose naked, while strategically covered by a Versace bag. “I am always on the lookout for the next Versace blonde. In January I feel I found the perfect Versace woman for the 21st century,” said Donatella. “She is chic and elegant but deeply sensual too.”

January Jones Naked For Versace Pictures