Probably been posted a million times, but there's bound to be some one who hasn't seen it.
YouTube - Versailles - The Red Carpet Day
It's the "PV" for "The Red Carpet Day" You can tell Kamijo is trying not to burst out laughing xD The parts where you can hear Hizaki play even though he isn't plugged in is hillarious. Teru does a little dance at 1:46 if you watch.