Lovato, topped out in a pink summer dress and denim jacket, went on first with fellow Camp Rock castmates. The group performed "It's On," along with bouncy, hair-flipping, choreography. Anna Maria Perez de Tagle and Jordan Francis who play the characters Ella and Barron, respectively, in the "Camp Rock" series, also strutted their stuff on stage.
"Stand up! This isn't a 3D movie!" Joe Jonas declared to the crowd before he and his brothers began the country-rock and soul song, "Heart and Song," shortly after Lovato's performance. Cast members also joined the trio on stage, as girls wiggled their hips while boys danced with unplugged guitars as props to shake things up.
The Jonas Brothers and Lovato are both on the road right now supporting the "Camp Rock 2" soundtrack. The Disney Channel original movie is scheduled to air on Sep. 3.