[показать] The cast of High School Musical 2 - Zac Efron, Vanessa Hudgens, Ashley Tisdale, Corbin Bleu, Monique Coleman - made a special appearance on Thursday's taping of Good Morning America (Lucas Grabeel was MIA).

There's an interview with the whole cast, a little song and dance, and a dance-along. GMA slyly had a video tape submission of little kids asking Zanessa how many boyfriends and girlfriends they have. Both Zac and Vanessa didn't fall for it the bait and answered that they have "many."

UPDATE: After being asked that question and right before the commercial break, Zac smiles, approaches Vanessa and holds up one finger. Could that symbolize one girlfriend, perhaps?? Wink, wink.

Watch the video of HSM2 on GMA below!