Three girls that joined a competition And then became A band and found masked from like the 50s

As a small-town girl catapults from underground video sensation to global superstar, she and her three sisters begin a one-in-a-million journey of discovering that some talents are too special to keep hidden. Four aspiring musicians will take the world by storm when they see that the key to creating your own destiny lies in finding your own voice.

Using a holographic computer she inherited from her father, Jerrica Benton turns herself and her pals into pop-music group Jem and the Holograms.