Barbie stars as Princess Courtney, whose world is turned upside down when she switches places with Erika, a famous rockstar. When a mix-up sends Courtney to Camp Pop and Erika to Camp Royalty and they learn both camps might shut down, the girls embrace their differences, find their true voices, and come together for an epic sing-off that shows anything is possible when you dare to dream big! © 2015 Mattel, Inc. All Rights Reserved.