Vamos Cantar Disco Baby(1979)

Orphanage Santa Cecília teeters on the brink of bankruptcy as a real-estate firm plans to raze it and its surrounding forest. Three girls receive a magical gift of song from a mysterious old woman, on the condition they never kiss a boy, to earn money and save the home. With reporter Raul and social worker Gretchen’s help, their rising fame threatens the developer’s scheme. In a last-ditch effort, the developer’s son kidnaps them, but unexpected feelings for one girl force him to reconsider.