As High School Musical 2 debuted in London's O2 Arena, thousands of fans dropped in to party with the stars while watching the much awaited second installment of Disney's made-for-TV hit movie. Fans were ready and dressed in cheerleader outfits complete with red pom-poms for the premiere of the movie. To heighten up the excitement, the stars of the TV musical were also set to appear in the venue, including Vanessa Hudgens and Zac Efron, for whom fans waited patiently for over an hour.

Despite their instant fame, a number of High School Musical's cast members have managed to stay grounded, and still in shock at how devoted the fans have been to the production.

Hudgens, who was popularized by her portrayal of Gabriella Montez, finds it "kind of crazy."

"It's overwhelming sometimes but it's great to be here," admitted the 18-year-old actress. "I'd like to say to my fans that they should never give up on their dreams."

In addition, Lucas Grabeel, who plays Ryan Evans, said, "It's really crazy and slightly unnerving, to be honest." The 22-year-old actor recalled his last visit to the O2 stadium for a Prince concert, where he was part of the audience.

"I was there as a fan and I felt what all these people feel being here now, it's fantastic and so great to be part of it," Grabeel said.

Furthermore, Monique Coleman, 26, believes that she is still the same "regular girl" she was before becoming the known actress she is today.

"I'm just me, I wake up every day and brush my teeth, for me it's really about the fans and this moment which changes their lives," Coleman explained. She said that aspiring actors and actresses should focus on the real goal and work hard to achieve it.

"You must realize that being a celebrity isn't an occupational choice. You have to do something specific, don't just go out there trying to be a celebrity because you can take your clothes off to do that," she explained. "That's not how we got here."

High School Musical 2 premieres on the Disney Channel in the UK on September 21.