On December 2, 2020, FOX announced that the series was renewed for a fifth season and would premiere in the spring of 2021.
On February 8, 2021, it was revealed that host Nick Cannon tested positive for COVID-19 and was sent into quarantine before production started. Niecy Nash, who was formerly a guest judge on the show, was revealed by FOX to be the stand-in for the first half of the season. Executive producer James Breen confirmed, however, that Cannon would return towards the second half.
On February 9, 2021, it was revealed that previous panelists McCarthy, Jeong, Thicke, and Scherzinger would all be returning for the new season.
On February 16, 2021, the first two costumes of the seasons were announced. From there, most costumes were officially announced through the official Twitter of The Masked Singer, with a few being announced through outside sources, such as Entertainment.
|Rank||Photo||Contestant/Celebrity||Ep. 1||Ep. 2||Ep. 3||Ep. 4||Ep. 5||Ep. 6||Ep. 7||Ep. 9||Ep. 10||Ep. 11||Ep. 12|
|1st||Piglet - Nick Lachey||SAFE||SAFE||SAFE
|2nd||Black Swan - JoJo||SAFE||SAFE||SAFE
|3rd||Chameleon - Wiz Khalifa||SAFE||SAFE||SAFE
|4th||Yeti - Omarion||ENTER
|5th||Russian Dolls - Taylor, Isaac, & Zac Hanson||SAFE||SAFE||SAFE||SAFE||SAFE||ELIM|
|6th||Robopine - Tyrese Gibson||SAFE||SAFE||SAFE||SAFE||ELIM|
|7th||Seashell - Tamera Mowry-Housley||SAFE||SAFE||SAFE||ELIM|
|8th||Crab - Bobby Brown||ENTER
|9th||Orca - Mark McGrath||ENTER
|10th||Bulldog - Nick Cannon||ENTER
|11th||Grandpa Monster - Logan Paul||SAFE||ELIM|
|12th||Raccoon - Danny Trejo||SAFE||ELIM|
|13th||Phoenix - Caitlyn Jenner||ELIM|
|14th||Snail - Kermit the Frog||ELIM|
- █ The contestant won The Masked Singer.
- █ The contestant was a runner-up.
- █ The contestant placed third.
- █ The contestant was safe from elimination.
- █ The contestant was revealed as a wildcard.
- █ The contestant was eliminated.
- █ The wildcard entered the competition, and was eliminated in the same episode.
- █ The contestant did not participate in the episode.
|Photo||Contestant/Celebrity||Entering Episode||Final Episode|
|Orca - Mark McGrath||"Group A Wildcard Round - Enter The Wildcards!"||"Group A Finals - In the Nick of Time!"|
|Crab - Bobby Brown||"Group B Wildcard Round - Rule of Claw!"||"Super 8 - The Plot Chickens!"|
|Bulldog - Nick Cannon||"Group B Finals - The Ulti 'Mutt' Wildcard!"|
|Yeti - Omarion||"Group A Finals - In the Nick of Time!"||"Semifinals"|
|Cluedle-Doo - Donnie Wahlberg||"Semifinals"|
|1||"Season 5 Premiere - Return of the Masks"||MS-501||March 10, 2021|
|Group A performs as guest host Niecy Nash takes the stage, along with the panelists.|
|2||"Group B Premiere - Shamrock and Roll"||MS-502||March 17, 2021|
|The second group of celebrities debuts another set of all-new jaw-dropping costumes.|
|3||"Group A Wildcard Round - Enter The Wildcards!"||MS-503||March 24, 2021|
|The members of group A return to the stage for their second performances of the season.|
|4||"Group B Wildcard Round - Rule of Claw!"||MS-504||March 31, 2021|
|The members of Group B return for their second performances of the season.|
|5||"Group B Finals - The Ulti 'Mutt' Wildcard!"||MS-505||April 7, 2021|
|The remaining singers battle it out for their spot in the final eight; an unmasking.|
|6||"Group A Finals - In the Nick of Time!"||MS-506||April 14, 2021|
|One celebrity is unmasked from Group A; another wildcard enters the competition.|
|7||"Super 8 - The Plot Chickens!"||MS-507/508||April 21, 2021|
|The top four singers from both Group A and Group B unite for a big sing-off; a double elimination.|
|8||"The Spicy 6 - The Competition Heats Up!"||MS-510||May 5, 2021|
|The final six sing for the golden mask trophy; guest panelist Chrissy Metz.|
|9||"The Quarter Finals - Five Fan Favorites"||MS-511||May 12, 2021|
|As the competition nears the finish line, the final five singers perform in the quarter-finals to see who will advance to the semi-finals.|
|10||"Semifinals"||MS-512||May 19, 2021|
|The final four singers sing their hearts out in the semifinals; Cluedle-Doo finally reveals himself.|
|11||"Finale"||MS-513||May 26, 2021|
|All three remaining singers are unmasked, but only one is awarded the Golden Mask Trophy.|
|"The Sing-A-Long: The Maskie Awards"||MS-509||April 28, 2021|
|Nick Cannon hosts "The Maskie Awards," a sing-a-long episode celebrating the best of Season 5.|
- This is the first US season:
- To feature wildcard contestants.
- To feature a costume that does not compete in the competition. (Donnie Wahlberg as Cluedle-Doo)
- To officially have two hosts, with Niecy Nash beginning the show and Nick Cannon concluding it.
- To have a fictional character as a contestant. (Kermit the Frog as Snail)
- To have a transgender contestant. (Caitlyn Jenner as Phoenix)
- To have a female contestant be eliminated in the second episode. (Caitlyn Jenner as Phoenix)
- To have a singer perform a song that has already been sung. (Robopine singing All Of Me sung by Peacock from Season 1)
- To have a contestant officially undergo a name change. (Porcupine to Robopine)
- To have a "Jar of Shame" that jokingly discourages the panel from guessing Jamie Foxx, Bjork, Johnny Knoxville, and Lindsay Lohan, who are all recurring incorrect guesses on the show.
- To sort groups in alphabetical order. (B-P for Group B and O-Y for Group A)
- To have Ken get a point for First Impression Guesses
- To have a contestant misread the concept "Take it off" and nearly strip off the whole costume. (Danny Trejo as Raccoon)
- To have the host eliminate a mask themselves.
- To not feature a food mask.
- Where all three finalists are in the same group. (JoJo as Black Swan, Wiz Khalifa as Chameleon, and Nick Lachey as Piglet in Group B)
- To have "The Maskie Awards," during a sing-a-long episode.
- To have a mask in Group B win the Golden Mask.
- To feature a female runner-up. (JoJo as Black Swan)
- To not include a "Road to the Finals" episode.
- Where a contestant didn't sing an Imagine Dragons or Tina Turner song.
- To have the first male singer to win a season who is not African-American. (Nick Lachey as Piglet)
- To feature new members of the Men In Black.
- To not have Face-Offs or Smackdowns.
- This is the second season to have a multi-person costume. The first was season four, with the Snow Owls.
- In the case of the Russian Dolls, however, one celebrity is inside a big costume controlling the mouth, while the others wear smaller, more mobile costumes instead of all the celebrities being in one conjoined costume.
- However, there are more than one or two.
- This is the third season to have a mechanical-themed costume with the first being Rabbit and the second being Fox.
- This season features the least amount of female contestants, with only 3.