Michelle Obama offers Jimmy Fallon another sack race

{mosads}The first lady took on Fallon in a fitness contest last February on his show that included push-ups, a tug-of-war, hula hooping, dodge ball and a sack race.

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.