Hidden Singer (Hangul: 히든 싱어) is a Korean entertainment TV program broadcast on JTBC. The mechanics are a famous singer and several impersonators of the singer. Each sing one measure of a song behind the blinds for four rounds. In the first two rounds, an audience of 100 people vote on the person who they think is not the real singer. In the last two rounds the audience votes on who they think is the real singer. It is hosted by Jun Hyun-moo.