Barack Obama and his wife Michelle have been attending a series of balls in Washington, following his inauguration as US president.

The 44th president danced a slow two-step with America's new First Lady Michelle Obama.

America's first black president then picked up the dance pace - to huge cheers from his supporters.

The Obamas have been hosting 10 official balls in the American capital.

Thousands of guests have packed ballrooms, happy to witness what has been described as a historic day in America's history.

Top American celebrities have been attending the balls, bringing a touch of star power to the festivities.

Vice-President Joe Biden and his wife Jill Biden have also been drawing huge crowds of admirers.