I Can See Your Voice (South Korean TV series)

A guest artist is presented with a group of six "mystery singers". Some of them are bad singers, and some are good. The artist must attempt to eliminate bad singers from the group by guessing who they are without hearing them sing. They get assistance from clues and "celebrity panelists" over the course of three rounds. The guest artist will eliminate one to two singers at the end of each round and then proceed to perform on the "stage of truth". At the end, the winning mystery singer is revealed as good or bad by means of a duet with one of the guest artists.

The original version has two gameplay formats:

• Original format

Under the original format, the guest artists) can eliminate one or two mystery singers in each round, and the last mystery singer standing will perform a duet.

• Star wars format (season 1, final episode only)

Under the star wars format, ten former mystery singers were separated into two teams. For each round, a mystery singer is chosen for a "showdown". Afterwards, the voting is done through audience majority, and the votes are accumulated for the winning team.

The winning good singer is awarded on the following conditions:[2][3]

• If the winner is a good singer, they will have a digital single release.
  • In the fifth season's premiere, the winner receives an award resembling a customized microphone.
• If the winner is a bad singer, they get a main prize of ₩5,000,000.

There were six[lower-alpha 1] individuals or groups of mystery singers standing on the platform with its aliases to keep their identities concealed until the stage of truth performance.

If at least one of the vocalist in group is bad singer, entire group is a bad singer even if other vocalist is good singers.

• The guest artist is given some time to observe and examine each mystery singer based on their appearance. ^{1   2   3}  After this, a muted video of each mystery singer that reveals only 0.3 seconds of their singing voice is played as an additional hint. ^{1   2} 
• Each mystery singer is given two identities – as a good singer and as a bad singer. Only one of them is their real identity. ^{4   5   6   7} 
• Each mystery singer reveals three keywords as an additional hint to convince the guest artist. ⁸ 

• Each mystery singer introduces using their own voice. ¹ 

• Each mystery singer performs a lip-sync to a song. Good singers are miming to own voices while bad singers are miming to other's voices. ^{1   2   3} 
• A mystery singer and a substitute lip-sync to the song together. Only one of them is the owner of the voice. ^{4   5} 
• The mystery singer lip-syncs to the good singer's voice, then the bad singer's voice comes in the middle of the performance. ^{6   7   8} 

• Identify the good and bad singers within 100 seconds based on its true statement. ¹ 
• The guest artist must have then 100 seconds to interrogate the remaining mystery singers before making the final decision. ¹ 
• The guest artist must pick one of three given "keywords", giving an opportunity to interrogate to each mystery singer after detailing additional information about them. ⁸ 

• A proof of each mystery singer's singing ability (i.e. photo, video, certificates, etc.) is shown on the screen. Good singers have their own evidences while bad singers have their evidences fabricated. ^{1   2   3} 
• Three randomly picked panelists must wear a headphone to hear the mystery singer's singing voice for 30 seconds. Afterwards, the panelist must defend the mystery singer and convince the guest artist to choose him/her as the final mystery singer. ^{4   5} 
• The hosts of the show have randomly assigned clues about the mystery singer. The guest artist must choose a clue for each mystery singer. ^{6   7}