Tomorrow's April Fool's Day, but at Mr. Skin, we prefer bare flanks to pranks. And no fooling--a surprising number of gorgeous, naked stars were born on April 1. Save the whoopie cushion and "kick me" sign and instead, spend the day with Bijou Phillips, Ali MacGraw, and the rest of our top 10 nude and sexy April Fool's Day babies. You'd be a fool not to.