The talk show host and the first lady bust a move in "The Evolution of Mom Dancing Part 2."

In 2013, Jimmy Fallon had Michelle Obama on Late Night to talk about a topic close to her heart: fitness. In order to demonstrate how families can get up and move together, the two broke out some sweet dance moves, for a segment they called "The Evolution of Mom Dancing." The piece included such mom dancing staples as the "Sprinkler," the "Happy Snapper," and the "Pulp Fiction." That clip went on to become a viral sensation.

Now, two years have passed, Fallon is the host of The Tonight Show, and mom dancing continues to evolve. So it only made sense to bring the segment back for "The Evolution of Mom Dancing Part 2." Fallon and Obama were able to find some more obscure techniques, like the "Knock Knock," the "Trying To Star A Conga Line," and the "Getting A Bag From Your Collection Of Plastic Bags Under The Sink."

Sources: The Tonight Show Starring Jimmy Fallon