US President Barack Obama, with daughters Malia (3rd R) and Sasha (2nd R) and Diana Ross (L), host Conan O?Brien (2nd R) and Actress/singer Megan Hilty sing a Christmas carol during the taping of the “Christmas in Washington” television special on December 9, 2012 at the Building Museum in Washington, DC. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)