Michelle Obama won and Fallon asked for a rematch that has yet to take place.
Fallon had not responded to the first lady’s tweet by post time, but he did thank his Twitter followers for the birthday wishes.
Thank you for all of the nice birthday tweets and wall’ings. When I blow out the candles tonight I’ll give my birthday good wishes to you.— jimmy fallon (@jimmyfallon) September 19, 2012
The actor, comedian, and late night host turned 38.
The "-mo" on Obama's tweet indicates the first lady sent it herself.