If you haven't already seen post in Lang Lang in the performance category, I thought he resembled the person who played Mozart in Amadeus (especially the ugly hair). I mean he seemed bouncy, happy, joyful, (possibly inebriated), young, etc.. From what I've read up on Mozart, Lang Lang seems to mimic him in ways.
I personally liked his performance. His expressions and acting could of been a show alone, I thought they added to his performance. (Although I have to admit, he could've been a little more serious. By the way, does anyone know his age? I know he's young but I'm not sure how young.....