PS: "It"=heaps of sex appeal and a lot of neck mobility.
The two invented dance moves based off random words and phrases drawn from a bag like "putting on skinny jeans" and "washing machine on spin cycle." Fallon definitely fell back on his comedy chops while Lopez, who admits that she gets rather competitive, defaulted to some sexy hip-swinging and light gyration.
In the end, both dancers came together for a pas de deux of sorts, except with much more dabbing.
It's only a matter of time before "Seeing Yourself on the Jumbotron" becomes the next dance craze to sweep the nation, or at least an exercise in an improv class or something.