The Princeton Girlchoir's annual Children Making a Difference concert teaches young girls about service and community while raising funds for a local nonprofit. The Princeton choir is joined by the newly-formed Philadelphia Girls Choir. "Singing has the mission of creating great citizens," says Philadelphia Girls Choir director Nathan Wadley.  Melissa Malvar-Keylock, Associate Director of the Princeton Girlchoir, explains, “Learning perseverance, learning discipline, all these things are above and beyond just singing beautiful music.”