The "Lang Lang effect," as it was called by the Today Show on NBC, is said to have inspired 40 million children in China to take up classical piano. Lang Lang himself learned to play when he was 3 years old. At 5, he made his public debut. At 13, he came in first at the International Tchaikovsky Competition for Young Musicians in Japan and started to make a name for himself. He was 17 when he performed a Tchaikovsky concerto with the Chicago Symphony Orchestra and became an international star overnight. Since then, Lang Lang has played for enthralled audiences throughout the world. Since he started playing at such a young age, he has experienced intense training, financial difficulties and professional struggles. He emerged stronger and more determined to help other children live better lives. In October of this year, he became the first Chinese national to be named Goodwill Ambassador for the U.N.This week on [Heart to Heart], we'll talk to renowned pianist Lang Lang about his music and life. He'll also play for us. See the passionate yet sensitive performance that's captivated audiences around the world.