The annual White House Correspondents' Dinner took place in our capital over the weekend, and Hollywood's finest made their way to the East Coast to show their support. Prada was a favorite of the night — both Kate Mara and Claire Danes went for beautiful looks from the label. Kerry Washington went graphic in a black and white dress by Wes Gordon, plus we got a peek at FLOTUS Michelle Obama's Monique Lhuillier number. All that and more in today's Fashion Flash. On Allison: Rachel Zoe blazer, Jane Basch necklace.