President Barack Obama and his family were the heart and soul of the party at this year's annual Christmas in Washington concert.
Mr Obama, accompanied by wife Michelle, daughters Sasha and Malia, and some very cute elves, grooved along to a star-studded show which included Diana Ross, US X Factor judge Demi Lovato and American Idol winner, Scotty McCreery.
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South Korean rapper Psy – whose hit Gangnam Style became a worldwide phenomenon thanks to its kooky dance routine – closed the show. He was performing after apologising for "inflammatory and inappropriate language" used during anti-U.S. protest concerts in 2002.
Despite the controversy which tinged the show, the president was quick to focus attention on the festive musical extravaganza, whose proceeds are donated to the Children's National Medical Centre.
He called the concert, "a chance to get in the Christmas spirit, spread some joy and sing along with artists who have much better voices than we do," adding: "It's also about the Americans who are spending this holiday in a hospital bed or a shelter, or protecting our freedom on the battlefield far from home."