During a photo op at the Christmas in Washington concert, the president and his family were in stitches as some young patients from the Children's National Medical Center made hilarious faces at the camera.
It was a high point among many at the star-studded annual event, which was hosted this year by Hugh Jackman and featured performances by Sheryl Crow, Janelle Monae and the Backstreet Boys among others.
The Obamas met five of the hospital's young patients, who stole the spotlight dressed as elves.
‘Hey, you guys, you going to help us?’ Mrs. Obama asked.
‘Good job, elves,’ the president laughed. ‘Nice job.’
The whole Obama gang was laughing even more as they said ‘Cheese!’ and two of the little elves showed off their silliest faces.