Some of our favorite, fashionable guests took a midweek break to attend events in NYC last night. Allison Williams went for a ladylike ensemble for a celebratory Barneys dinner, while "Carrie Diaries" star Annasophia Robb rocked on-trend stripes for the Broadway premiere of "Breakfast At Tiffany's." Click through to see all of the stylish looks from the first day of spring.