New York subway musicians are a constan presence underground. One entrepreneur thought they would be a hit in the Seoul subway, which doesn’t have performers. So she rounded up some players and flew them to Korea. “They were featured on Korean talk shows and news shows, and their faces were all over the papers. And the buzz only increased as the days passed. On the day of their second performance, the musicians arrived at GangNam station to find several hundred people sitting quietly on the floor, some with their own mats, waiting for the music to start. By the time the trip ended two weeks later, the five musicians were the toast of the town, featured in just about every newspaper, magazine and TV show of note.”