In barbie in rock n royals two very different worlds collide when a mix up sends a princess and a rock star to the wrong campsr as they face an epic sing off both girls embrace their differences find their true voices and learn that anything is possible when they work togetherr kids will love celebrating the story with this singing courtney doll who magically transforms from royal to rockerr simply lift the pink microphone to her mouth to activate a dramatic fashion transformation and pl