Lesley Stahl spent a year trailing Vy Higginsen, an accomplished gospel singer who started a program for teens in Harlem with the intention of preserving the art form by introducing it to a young generation. Her rule: her charges were expected to leave their problems at the door and focus on the music. She discovered that her most gifted kids were unable to separate themselves from their problems at home. Many of them were scarred by indifferent or absent parents, and tragedies that scarred them and made them feel worthless. Once Higginson helped her students reveal and deal with their problems, they soared.