High School Musical star Zac Efron has had emergency surgery in America to remove his appendix.
The 20-year-old actor who starred as Troy Bolton in the hit movie, had the operation at a Los Angeles hospital.
Zac was taken to hospital a day after it was confirmed he will be appearing in the third High School Musical film.
High School Musical 3: Senior Year will follow Zac and his co-stars as high-school seniors, putting on a musical before they graduate.
Zac will be joined by Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbin Bleu and Monique Coleman, when filming starts in the spring.