Jimmy Fallon, Will Ferrell and Michelle Obama

The First Lady is showing off her comedic chops once again with the help of Jimmy Fallon.

On Thursday's episode of The Tonight Show, Michelle Obama dropped by Fallon's recurring "Ew!" skit, which features the host as a teenage girl named Sara who is grossed out by pretty much everything. While Will Ferrell was also dressed in character for the skit, Obama played herself as she raved about exercise to promote her "Let's Move!" campaign.

NBC reveals first week of guests on Tonight Show Starring Jimmy Fallon

"I think exercise is ew," Ferrell exclaims.

"Exercise is not ew!" Obama responds, explaining her love for dance, tennis and even push-ups.

Top Videos: "The Evolution of Mom Dancing"

The trio then broke out into a dance party, something Obama is used to doing alongside Fallon.  

Watch: