Viewers' favorite Disney episodes and music videos are featured. Also: Disney Channel stars compete in five game-show challenges. Among those appearing: the Jonas Brothers; Demi Lovato; Selena Gomez; Tiffany Thornton; Emily Osment; Mitchel Musso; Jason Earles; Moises Arias; Cole Sprouse; Dylan Sprouse; Brenda Song; Alyson Stoner; Jason Dolley; Bridgit Mendler.