The film debuted on the American Disney Channel on June 20, 2008. Camp Rock was the second DCOM to air on ABC's The Wonderful World of Disney after its premiere on Disney Channel, and was placed on the iTunes Store for digital purchase shortly after its premiere on Disney Channel. The film was watched by 8.9 million viewers on the night of its premiere, making it the second highest viewed DCOM behind High School Musical 2, at the time. After the premiere of Wizards of Waverly Place: The Movie, Camp Rock was displaced to the third highest viewed film premiere.
Spoiled brat/pop star Shane Gray (Joe Jonas) has been assigned to be in charge of dance classes for one month at Camp Rock by his bandmates Jason (Kevin Jonas) and Nate (Nick Jonas). Shane hears Mitchie singing and falls in love with the voice, but does not know the identity of the singer. Shane spends much of the film searching for the girl with the voice. Shane and Mitchie have various interactions, and, when Shane learns her identity, a romance between the two blossoms.