Allison Williams, Hailee Steinfeld, and Olivia Palermo attend the Peter Som spring 2013 fashion show during Mercedes-Benz Fashion Week at Milk Studios on Friday (September 7) in New York City. The evening before, Allison and Olivia attended events to celebrate the 2012 Fashion’s Night Out! Allison stopped by the opening of Christian Siriano‘s new boutique in the Nolita neighborhood of the Big Apple while Olivia attended the opening of Piperlime‘s first ever retail store in the Soho neighborhood. Check out photos below or see all posts tagged with allison williams leather dress, leather dress, leather midi dress