Reagan,Amber,zendaya and Diana Cook, are the princesses of Australia . Reagan,20 years old,Diana,19,zendaya ,17 and amber 16. 5 seconds of summer ,are an Australian pop rock band. They've heard of the princesses but never met . What happens when four princess ,turn up at one of there concerts .? Will they fall in love .? Will ,the family crown get in the way.? Find out in the four princesses