Michelle Obama played hostess to the spouses of leaders from all over the world during the G-20 Summit that began Thursday in Pittsburgh. Opening night included a reception at the Phipps Conservatory (where Mrs. Obama wore a controversial dress by designer Thakoon). Other events on the first ladies' itinerary included an intimate dinner at Teresa Heinz Kerry's farm, a tour of the Pittsburgh Creative and Performing Arts School, and a visit to the the Andy Warhol Museum. 
