We already know that everyone on the Glee lot has a middle-school sized crush on guest star Ricky Martin, but now we have further proof as to why: chair-dancing! Everybody loves chair-dancing. His full performance of "Sexy and I Know It" is a bilingual affair that has the girls in a tizzy, and Finn showing surprising progress in the world of body rolls—more than weeks of Booty Camp could produce. The presence of a handsome mystery man leads to impromptu exercise, monkey impersonations and Artie forgoing all her ever said about MJ to follow the word of Señor Martinez. We'll take comments on Martin's performance, Schue's terrified stares and any potential names for the chair-dancing version of The Moonwalk, in the comments below.