'American Idol's' Kara Dioguardi reteams with Demi Lovato on 'Camp Rock 2'

demi-lovato-joe-jonas-kara-dioguardi.jpgFor their new film, "Camp Rock 2," the Jonas Brothers and Demi Lovato worked with "American Idol" judge Kara DioGuardi.

Why? Because way before Kara became a famous "Idol" judge, she wrote several songs for the first "Camp Rock" including "We Rock" and Lovato's song titled, "The Middle." She and Demi also co-wrote "Believe in Me."