Manuel Balce Ceneta, Associated Press
President Bush and first lady Laura Bush pose with Hugo Carney, left, Catherine McKinnon, Luke Hohlt, Paul McStarrow and Natalie Norr at the National Building Museum Sunday in Washington, D.C.

President Bush and first lady Laura Bush pose with Hugo Carney, left, Catherine McKinnon, Luke Hohlt, Paul McStarrow and Natalie Norr at the National Building Museum Sunday in Washington, D.C. Country singer Alan Jackson, tenor Andrea Bocelli and "High School Musical" star Vanessa Hudgens performed for the first family Sunday at the taping of "Christmas in Washington," a concert that benefits Children's National Medical Center. Bush thanked the members of the military during the event, calling them "one of our greatest blessings." The concert, hosted by "Dr. Phil" McGraw and his wife, Robin, will air Wednesday night on TNT.