Celebrity Hilary and Mariska's Joyful Night and More! By Bronwyn Barnes Bronwyn Barnes Instagram Twitter Bronwyn is the VP of Commerce for Health and Beauty at Dotdash Meredith and joined the team in 2021. She is a professional storyteller and digital pioneer with 20 years of experience in print, digital and social media. Before joining Dotdash Meredith, Bronwyn was co-founder and Chief Creative Officer of a boutique content agency, combining editorial style and brand marketing principles to create custom digital and social media content for brands like Hilton Hotels, Waldorf Astoria, and Bulgari. She was the founding social media editor of InStyle's Facebook, Twitter, and Instagram accounts and architect of early social media brand partnerships with brands like Target, Lionsgate Films, and Essie. Bronwyn has also worked as an editor and writer, at InStyle, Entertainment Weekly, People, Travel + Leisure, and more. Bronwyn earned a B.A. in literature and sociology from Queen's University at Kingston. InStyle's editorial guidelines Published on May 18, 2011 @ 05:30PM Pin Share Tweet Email Photo: Mike Coppola/Getty That's what friends are for! Hilary Swank, Bridget Moynahan and Hugh Jackman were among the stars who turned out to support Law & Order: SVU star Mariska Hargitay at the 2011 Joyful Heart Foundation gala in New York City. Further downtown, Mary-Kate and Ashley Olsen stopped at designer Diane von Furstenberg's studio for the annual CFDA members' meeting before heading over to the Tribeca Grand Hotel to join Rachel McAdams at the Cinema Society's screening of Midnight in Paris. And speaking of Paris (Hilton, that is) the original celebrity socialite hyped her upcoming reality show at the Hollywood Roosevelt Hotel in L.A. Click through the gallery to see these stars plus Kate Moss, Naomi Campbell and more celebrities inside last night's hottest parties!