Obamas embrace Christmas season with Kermit the Frog

The Obamas have well and truly got into the Christmas spirit during a festive ceremony to turn on the US National Christmas Tree.

The president sang a rendition of Winter Wonderland with a Father Christmas character, accompanied by his wife Michelle, who had Kermit the Frog on her shoulder.

The couple's children Sasha and Malia also joined in the festivities just in front of the White House.