The pair were each given prompts and had to come up with a new move on the spot.
Fallon had to “Put on Skinny Jeans” and “Walk on a Moving Bus,” adding his familiar brand of comedy to the challenges.
Seasoned dancer Lopez got a bit sexier with her choices, swiveling her hips and whipping her hair to the “Washing Machine on Spin Cycle” and popping out her famous booty for “Hot Cowboy.”
The duo came together for “Seeing Yourself on the Jumbotron,” jokingly pretending to nosh on popcorn before losing their minds over getting a cameo on the giant screen. Watch the clip to see their epic moves!