Mary-Kate Olsen snuggled up to Proenza Schouler's Lazaro Hernandez this afternoon in NYC as they helped announce the plan for this year's Fashion's Night Out at City Hall. Both Mary-Kate and her sister Ashley have their plans for Sept. 10 set already — they're teaming up with us and Fab at their first-ever Elizabeth and James pop up shop! Ashley skipped out on today's press event, leaving Mary-Kate to mingle solo with heavy-hitters like Anna Wintour, Tommy Hilfiger, Marc Jacobs, and even Mayor Michael Bloomberg. Mary-Kate is no stranger to hanging out with politicians, but it's Ashley who hopes to one day dress First Lady Michelle Obama. Ashley told Harper's Bazaar, "I'd love to get Michelle Obama in the Row. The simple suits and things. It's all made in America, so why not?"