First lady Michelle Obama chose a white chiffon one-shoulder gown for a series of balls celebrating the inauguration of her husband.
At the Neighborhood Ball at Washington's Convention Center, President Barack Obama, said: "First of all, how good-looking is my wife?"
Her full-skirted dress had a strap across her right shoulder, a ruched bodice, fluffy appliques and sparkly beading. Mrs. Obama is wearing a Jason Wu gown this evening, which per tradition, will be donated to the Smithsonian.
The president and first lady were dropping in on 10 official balls Tuesday night, kicking up their heels after a day of pomp and ceremony in the US capital.