What Makes Her Beautiful

Claire lives in the shadow of Kaelis, her twin sister. She likes it that way, though. She can read her books and play her music quietly while Kaelis let's everyone know how she feels. Kaelis is better at everything anyway. Except for one thing. Singing. Claire was blessed with an amazing voice. But, she doesn't want to share it with the world. She likes being in the shadows.
But, add in a popular boy-band, a heartbreak (not necessarily her own), and a songwriter's contest, will she change her mind?