Before the masses got to see Barack and Michelle Obama in the celebratory inauguration parade nearly one month ago today, White House photographer Pete Souza did, capturing the first couple in a moment of seemingly off-the-cuff glee.
We know the Obamas are good for an inside joke, as documented in another one of Souza's inauguration weekend snaps. But this photo, featured on the White House's Facebook feed Tuesday, has us wondering still -- what's all the laughing about?
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President Barack Obama and First Lady Michelle Obama ride in the inaugural parade in Washington, D.C., Jan. 21, 2013. (Official White House Photo by Pete Souza)