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Teenage heartthrobs Zac Efron and Vanessa Hudgens broke out in fits of laughter as the 2007 Teen Choice Awards kicked off with a parody of their hugely successful High School Musical movies. The cute couple enjoyed a prime spot on a VIP white couch for the show, where co-hosts Hilary Duff and Nick Cannon introduced everybody worth knowing on the Hollywood teen scene. "High School Musical started two years ago and the only reason we're here is because of you guys," said Efron, who could hardly be heard over the din of his teenage fan club. Sigh.

—Lindzi Scharf