The world's youngest city pop singer Sakura's second vinyl produced by Etsuko Yamakawa!Side A, 'Princess Be Ambitious!' is full of bouncy pop and cute charm, and side B, 'CHA KA PON' has a unique, laid-back sound that is addictive.The world of Etsuko Yamakawa, who is constantly evolving with a variety of colors, and the cute and charming singer Sakura, have come together to create a neo-city pop sound!SonglistA1. It's okay if she's a princess-Hyakuhana Ryoran-B1. CHA KA PON