Korea's Got Talent has a new star in the semifinals--a 22-year old opera singer named Sung-bong Choi who specializes in Italian love songs. But what makes Choi so heartbreakingly wonderful is his past as a homeless boy who used sleep in doors and sell gum to survive....from the age of 5. Watch the video below (now viewed by over 9 million people) and see how the whole story of his past came to light on national television--with such restraint and grace, you'd think he was a head of state.