NYC's Most Famous '90s It Girls — Where Are They Now? #refinery29 http://www.refinery29.com/90s-celebrity-it-girls#slide-1 Chloë Sevigny: ThenSome may argue that Sevigny was one of the youngest to solidify her status as the ultimate New York It Girl (The New Yorker dubbed her the "coolest girl in the world" at age 19). She was a sassy intern for Jane Pratt's Sassy, broke into the movie business with her lead role in Larry Clark's controversial film, Kids, and was a regular on the downtown…