10 Months Ago, New York Times says (in The Private Lives of Pop Stars, Male Division)  United States - Jon Caramanica
In “Camp Rock,” last year's Disney Channel hit movie, which starred the brothers, Joe was the lead, a bratty pop star in need of reform, a clever tweak to the group's angelic image. In the initial, scrapped version for this show, the Jonas Brothers led ...

And SheKnows.com says (in Demi Lovato rises above Disney success) Also a stalwart on Disney radio, Lovato’s music career has crossed over to mainstream success with her hit This is Me – her duet with Joe Jonas. The song was from the Disney Channel original film Camp Rock that starred Lovato and The Jonas Brothers. ...
Demi Lovato Has A Chance MyFox Los Angeles