Thanks to Karianne for recommending this movie

[Source 2]

Plot Summary:
“Camp Rock,” centers on a teen girl who desperately wants to spend her summer at a prestigious rock camp, but can only attend if she works in the kitchen as one of the cooks. When she’s overheard singing - but not seen — by a teen pop star at the camp, he is completely taken and sets out to find the girl behind the beautiful voice. But first she must confront her fears, step out of the kitchen and into the spotlight.