The first family flipped the switch last night to light up the 48-foot Christmas tree on the White House lawn. It was the 90th annual national Christmas tree lighting, and the president sang "Sana Claus Is Coming to Town" with the help of his daughters, Malia and Sasha, as well as the first lady and her mom. Actors Neil Patrick Harris and Modern Family's Rico Rodriguez joined the Obamas as they counted down before Michelle and the girls turned on the beautiful red and green lights on the tree. In addition to Christmas carols sung by the president, the crowd was treated to performances by James Taylor and American Idol winner Phillip Phillips. See all the festive fun now!