Stars of High School Musical were met with screams of delight by hundreds of excited fans in London at the European premiere of their second film.
Loads of kids were chanting 'We want Zac' for more than an hour before any of the young stars appeared.
When they did, Zac Efron, Vanessa Anne Hudgens, Lucas Grabeel and co said the attention was crazy, but fantastic too!
Vanessa, who plays Gabriella, said: "It's overwhelming sometimes but it's great to be here."
The crowds went wild when Zac Efron finally stepped onto the red carpet, but he was quickly whisked away as lots of fans became increasingly over-excited.
Monique Coleman, who plays Taylor, had some words of advice for any wannabe actresses hoping to follow in her footsteps: "Work really hard at it."
High School Musical 2 has already smashed a TV record in America, after about 17.2m people tuned in to watch it when it was first shown last month.