Kristin Cavallari's heart might be in Chicago with her new man Jay Cutler--who reportedly flew to NYC yesterday for a lunch date with her--but right now, her eyes are glued to the stage at Lincoln Center. Over the weekend, the ex-"Hills" star attended Fashion Week shows and parties, scouring for spring 2011 trends and showing off some fabulous looks from her own closet. At the Zac Posen show on Saturday, she rocked a knee-length floral dress with built-in corset (pic on the left); on Sunday, she wore an asymmetrical Romona Keveza dress to the The Montblanc John Lennon Edition party (center); at the Catherine Malandrino presentation she went ultrasophisticated and wore a blouse and trousers by the designer (right).

+ What do you think of Kristin's diverse wardrobe? Take a look at the head-to-toe outfits below and tell us which one is the front-runner!