Tyra Banks paid a visit to Chicago-based YouTube Sensation Keenan Cahill and they shot this amazing video in his room, in which they dance and lip-sync to “Walk Like Tyra” by Peter Kaze. We’re not sure what’s better: Tyra’s dancing skills or the excellent use of smizes (which exist in Tyra’s fantasy novel, Modelland). It will brighten your day.

You may recognize 16-year-old Keenan Cahill, who has done similar videos with tons of celebrities including Julianne Hough, Sean Kingston, 50 Cent, Jennifer Aniston and the cast of Glee, to name a few. His story is an inspiring one–Cahill suffers from a rare disease called Maroteaux-Lamy Syndrome, where the body is unable to metabolize certain glycosaminoglycans, which means expensive surgeries and weekly therapy treatments. He got his big break when Katy Perry tweeted one of his videos. Currently, his videos are among the most viewed on YouTube and he’s shopping around a reality show. He’ll also be making an appearance on America’s Next Top Model on November 2, so set your DVRs. Perhaps he could also become the official spokesperson for smizes? Check out Keenan’s website here.