Celebrity Last Night's Parties: Kate and Dianna at Coach's Carnival and More By InStyle Editors InStyle Editors Facebook Instagram Twitter Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. InStyle's editorial guidelines Published on June 20, 2012 @ 03:35PM Pin Share Tweet Email Photo: Dimitrios Kambouris/Getty Images Kate Mara (in Madewell) and Dianna Agron (in Tracy Reese for Anthropologie) celebrated the start of the season at Coach’s Carnival, held on the High Line in New York City. The Glee actress carried a black clutch from the leather brand's upcoming Legacy collection, in stores this August. Click through to see more stars at last night's hottest Hollywood parties! — Rose Walano, reporting by Nikki Ogunnaike