The entire cast of High School Musical 3 - Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Monique Coleman and Corbin Bleu - appeared on ABC's Good Morning America earlier today.

For his (hot!) part, Efron talked about coming into rehearsals a few weeks late because he was busy shooting another movie, 17 Again. He said couldn't keep up with girlfriend Vanessa Hudgens; we assume he meant on the dance floor:

"It was tough catching up with everybody. Vanessa's tough to keep up with, man. She's really coordinated. It's tough."

Zac wasn't alone, though. The entire cast seemed to have a difficult time with the new moves.

"I'm still hurting. We're all kind of limping around," Hudgens said.

"I think I grew a full shoe size. My feet are so swollen. It's pretty bad, but it's worth it," added Monique Coleman.

One star who seemed to be doing well, though, was Tisdale. She thanked her footwear for that.

"Well, actually, the shoes are comfortable," Ashley said. "We had ballroom shoes on and everyone was wearing heels and everybody was like, ‘Argh, my feet hurt,' and I'm like, ‘Mine are great!'"

This may be a silly question to ask, but: Will you be seeing High School Musical 3?