This star is almost unrecognizable… despite the fact they’re hardly wearing anything at all. The lingerie model is Oscar-winner Hilary Swank, who stripped down for a sexy and feminine Calvin Klein ad in 2006, after playing two very tough roles in “Boys Don’t Cry” (1999) and in boxing flick “Million Dollar Baby” (2004). This ad was reportedly the only modeling that the actress had done in her career, at the time. She must have enjoyed the experience since she also shot several print ads for Guerlains’ Insolence perfume line the following year in 2007, wearing… lingerie [natch]!