You'd think he'd have guessed he won since they bothered to fly him and Vanessa out from HSM3's tight shooting schedule to be there, but he seemed pretty taken aback when they announced his name.
EDIT: The video won't embed because MTV is a lametard. Instead, click here to watch the video at their site.
And to make amends here is some lovely precious picspam from last year:
SO YAY ZAC EFRON ON MY TV TONIGHT.
only downside all the twilight stuff they'll be whoring, boo
eta: if you are bored today you can watch the red carpet prep here.