First Lady Michelle Obama On Letterman [VIDEO]

First Lady Michelle Obama got a few laughs and nearly shed a few tears on "The Late Show with David Letterman."

The First Lady appeared on "The Late Show with David Letterman"  to boost the "Joining Forces Campaign" which is aimed at ensuring members of the armed forces and their families are always taken care of.  While she was there, she also talked about her father and joked about private conversations she has with the president.