Posh Spice in the nude in Marc Jacobs

Knew that would get your attention!:)Beckham is the latest celebrity to take her kit off for the designer and his business partner Robert Duffy's initiative to raise money for The Interdisciplinary Melanoma Cooperative Group at New York University — with T-shirts featuring the Spice Girl benefiting the cause.

"Since we have moved to California, I have realized how important it is to practice safe sun for myself and to keep the skin of my three boys well protected as well," Beckham said. "Skin cancer is a huge problem and I really wanted to help raise awareness by taking part in Marc and Robert's initiative."

Posh is in good company — Hilary Swank, Selma Blair, Julianne Moore and Christy Turlington are among the celebrities who have posed for the cause in the past. The $35 T-shirt featuring Beckham will go on sale at Marc Jacobs boutiques this week.

If you cannot get one of the Tees, cover yourself in L'OCCITANE Immortelle Protective Lotion and Sunscreen, SPF 15