On NBC's "The Tonight Show" Tuesday night, 15-time WWE World Heavyweight Champion John Cena and host of the new reality show ‘American Grit’ (premiering Thursday, April 14 at 9/8 C on FOX) joined host Jimmy Fallon for a game of Sticky Balls.

Watch Fallon and Cena slip into Velcro suits and attempt to stick as many balls to each other as possible before time runs out.

If that isn't enough to convince the WWE Universe how much fun Cena and Fallon had Tuesday night, perhaps Fallon's tweet best sums things up:

...And that was a scene from “You’re My Boy” the musical! #FallonTonight pic.twitter.com/zxEFBxo8UE

— Fallon Tonight (@FallonTonight) March 30, 2016