Tonight's Met Gala Ball is one of the most popping black-tie affairs of the year in New York. Swizz Beats already showed us a sneak of what him and Alicia Keys will be wearing tonight. Barneys New York has sexy heiress Daphne Guinness dressing for the event live in one of the store's display windows. If you so happen to be on Madison and 61st while you're reading this, stop by. If not, you can watch the live stream here. Now!