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Guest panelists DeRay Davis and Nikki Glaser; a contestant performs with Lauren Alaina.

The singer whom the contestant picks reveals their skill in a duet performance with Gavin DeGraw.

The singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Dionne Warwick, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Romeo, Melissa Peterman and Frankie Muniz; a contestant performs with Adrienne Bailon-Houghton.

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Montell Jordan, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

The singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Johnny Gill, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Carnie Wilson, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Michelle Williams, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Tyler Hilton, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Shawn Stockman, resulting in an amazing musical collaboration - or a totally hilarious train wreck

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical duo Maddie & Tae, resulting in an amazing musical collaboration - or a totally hilarious train wreck.

Hosted by Ken Jeong, permanent panelists Cheryl Hines and Adrienne Bailon-Houghton and a rotating panel of guest celebrity detectives must help one contestant tell the difference between good and bad singers, without ever hearing them sing a note. With $100,000 on the line, each contestant will attempt to weed out the bad "Secret Voices" from the good, based on a series of clues, interrogation, and lip synch challenges. In the end, the singer whom the contestant picks will reveal if they are good or bad in a duet performance with musical superstar Chris Kirkpatrick, resulting in an amazing musical collaboration - or a totally hilarious train wreck.