A SONG HE KNOWS

Created on Tuesday, 22 January 2013 09:43 Last Updated on Tuesday, 22 January 2013 09:43 Published on Tuesday, 22 January 2013 09:43 Written by Associated Press Hits: 321

President Barack Obama and first lady Michelle Obama, wearing a ruby colored chiffon and velvet Jason Wu gown, dance as singer Jennifer Hudson, right, sings Al Green's "Let's Stay Together" at the Inaugural Ball at the Washington Convention Center during the 57th Presidential Inauguration in Washington, Jan. 21, 2013. (AP Photo/Charles Dharapak)

(AP)--Jennifer Hudson showed them how it's done at the Commander in Chief's Ball last night. President Barack Obama danced with first lady Michelle Obama as Hudson cut loose with a rousing rendition of Al Green's "Let's Stay Together."

That song and Obama are not strangers.

The last time Obama met that song in public was a year ago, at a fundraiser at New York's famed Apollo Theater. He crooned a few bars, to the delight of the crowd. Then he joked he'd survived the Sandman — a reference to Sandman Sims, the tap dancer who chased unpopular acts offstage at the Apollo for decades.

Also: Here's what you've undoubtedly been looking for — a picture of the first lady and her gown.

Michele Salcedo — Twitter http://twitter.com/michelesalcedo