Lupita Nyong’o in Oscar de la Renta at White House Correspondents’ Association Dinner

Hollywood and Capitol Hill collided Saturday at the annual White House Correspondents‘ Dinner. The star-studded event celebrates a year of journalism in Washington. The dinner has even  been dubbed the annual “Nerd  Prom,” but let me assure you the looks from the event are far from “nerdy.”   Of course the belle of the ball …