CHRISTMAS wouldn't really be Christmas in Washington without the annual concert.
The occasion was the filming of the 32nd annual 'Christmas in Washington' concert, a benefit for the Children's National Health System.
After an evening of Christmas carols at the National Building Museum, President Obama said Americans should remember Jesus Christ's lessons of charity and compassion.
"Through his example, he taught us that we should love the Lord, love our neighbours, as we love ourselves.
"It's a teaching that has endured for generations. And today, it lies at the heart of my faith and that of millions of Americans, and billions around the globe," Obama said.
"No matter who we are, or where we come from, or how we worship, it's a message of hope and devotion that can unite all of us this holiday season."
Before the concert began, the president, his wife Michelle and daughters Sasha and Malia helped collect presents for patients at Children's National Medical Centre in Washington. Mrs Obama's mother, Marian Robinson, watched from nearby.
The Obamas met five of the hospital's young patients, who were dressed as elves.
"Hey, you guys, you going to help us?" Mrs. Obama asked.
"Good job, elves," the president said. "Nice job."