People not recognizing him is the one very believable part of it. Drag queens pretty much transform on stage, you'd never recognize one IRL: they look, act, move and speak differently.
As for him being a femboy, it's hard to tell, sooner no than yes. Femboys basically have bodies that approach female ones sans tits. Guy is simply young and fit. He's closer to androgyny than femininity if we're talking purely physically. But that makes him even hotter: he isn't coasting by on a built-for-dick feminine body, but is employing his persona to be attractive.