Letterman: 180 looks good on you. Obama: Thank you. Letterman: 'Cause that's just about where I am, and I don't look so good at 180. Obama: No, you know, you look sharp. Letterman: You haven't seen me naked! Obama: We're gonna keep it that way.

President Obama appeared on the David Letterman Show, September 19, 2012, where Letterman asked how much the president weighs.