You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The singer of "Confident" starred in what Disney Channel movie?" whose answer is Camp Rock.
Each document should contain about 30 words, and these documents should contain useful information.

Query: singer of Confident Disney Channel movie
Useful Output:

Doc 1: Actress, singer, and producer Selena Gomez has done a lot in her mere 31 years. Gomez got her big break starring as teen witch Alex Russo in
Doc 2: For the uninitiated, “High School Musical” centers on Troy Bolton (Efron) and Gabriella Montez (Hudgens), two high schoolers who meet during
Doc 3: Demi Lovato is an American singer, songwriter, and actress who first gained fame as a Disney Channel star before launching a successful
Doc 4: Best Disney songs of all time: Movies, TV themes, theme park songs and more from the wider Disneyverse.
Doc 5: Demi Lovato - Confident (Radio Disney Version) · Comments.