You and Idol Precure - Season 1

Middle school student Uta Sakura loves to sing any chance she gets. But music becomes more than a hobby when she meets Purirun, a fairy whose hometown has plunged into darkness. The Chokkiri Gang took over her land and began stealing her people's sparkle. Determined to help, Uta is transformed into the legendary protector Cure Idol and vows to return their sparkle through song.