The JONAS BROTHERS -- JOE, NICK and KEVIN -- walked the red carpet at the Ziegfeld Theater in New York City for the premiere of the Disney Channel movie, "Camp Rock" -- and ET was there with the talented teen stars.

"Camp Rock," a Disney Channel movie, premiering on Friday, June 20 at 8 p.m., is the story of Mitchie Torres (DEMI LOVATO, "As the Bell Rings"), an insecure but gifted teen from a working-class family, who wants to share her songs with the world and meets up with a young superstar, who has lost his zeal for music. The two teach other the importance of being true to yourself.

In addition to the three Jonas brothers and Demi, the film stars ALYSON STONER ('Cheaper by the Dozen'), MEAGHAN JETTE MARTIN ("The Suite Life of Zack and Cody") and ANNA MARIA PEREZ de TAGLE ("Hannah Montana").