Hidden Singer (Korean: 히든 싱어; RR: Hideun Singeo) is a South Korean variety-music TV program broadcast on JTBC. The mechanics are a famous singer and several of their impersonators sing 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, the person with the most votes would be eliminated. In the final round, the audience votes on who they think is the real singer, the person with the most votes would win the episode. The program is hosted by Jun Hyun-moo.

After around three years of hiatus, since the fourth season's end, the program began its fifth season by airing a "comeback special" episode on June 10, 2018; the regular episodes air starting from June 17, 2018.

A sixth season was confirmed after two years, starting with a "comeback special" episode that aired on July 31, 2020.

After two years of hiatus, the seventh season aired from August 19, 2022. This marks the tenth anniversary celebration of the show.