Hidden Singer is a South Korean entertainment TV program broadcast on JTBC. The mechanics are a famous singer and several impersonators of the singer. Each person sings one measure of a song behind the blinds for four rounds. In the first three rounds, an audience of 100 people vote on the person who they think is not the real singer. In the final round, the audience votes on who they think is the real singer. The program is hosted by Jun Hyun-moo.