High School Musical: Summer Session ABC announces 'High School Musical: Summer Session' casting calls 04/07/2008 ABC has announced the casting call locations for High School Musical: Summer Session, a new reality competition series based on Disney Channel's successful High School Musical franchise that will premiere Sunday, July 20 at 8PM ET/PT. Read More RELATED NEWS ABC tweaks 'High School Musical: Get in the Picture's prize packageABC reveals 'High School Musical' reality series prize, tweaks titleABC taps Nick Lachey to host 'High School Musical: Summer Session' TAGS:
