The Masked Singer UK revealed Katherine Ryan was the celebrity performing as Pigeon on Saturday night, as another character was unmasked.
The actress and comedian left the panel reeling when she took off her mask, and host Joel Dommett announced who it was.
Jellyfish, Fawn, Jacket Potato, Rhino, Pigeon, Otter, Knitting and Phoenix all took to the stage for the first time in the series, having been split into two groups since the start of the month.
As each of them performed once more, the panel Mo Gilligan, Davina McCall, Rita Ora and Jonathan Ross once again chose someone to send home.
As this week's victim was announced, Pigeon, they soon took of the mask and left the panel reeling with their true identity.
While some viewers guessed correctly, many had no idea it was the comedian and guessed it was Catherine Tate or Emily Atack.
The mint sauce and vegetables were a nod to the comedy series Roast Battle. She also voiced All Star Driving school, and is close friends with Jimmy Carr.
She also 'roasted' the singer Cheryl, which is why she performed her song Fight For This Love.
Katherine was heavily pregnant while filming the series, and said she kept her appearance on the series from her young daughter as they are both a fan of the show.
It follows last week's show, that saw the panel reeling over the true identity of Rubbish, as snooker player Stephen Hendry was unmasked as the character.
Asked why he did the show, he confessed he loved watching it and he chose his own costume - saying he went for Rubbish because he knew he wouldn't be much of a dancer.
On taking part Stephen said: "I thought it was so obvious because it was me. I love the show and its way out of my comfort zone so I thought why not let's give it a go."
On some of the clues, the 'No1' on the bin and him saying the word "again" seven times in reference to recycling was a nod to his seven wins.
Cat and Mouse was the previous contestants to be found out. The duo were unmasked as celebrity couple and singers Martin and Shirlie Kemp, and none of the panel correctly guessed the result.
Martin confessed he was more nervous being under the mask, as he confessed: "I was more nervous. I could literally hear my heart in my ears," whilst Shirlie said it was harder to sing in the mask than out of one.
"It is just so off the wall. It’s so much harder to sing in the mask than you imagine it will be," she added.
The week before this, music legend Lulu was revealed to be Piece of Cake in a huge surprise, that the panel once again did not see coming.
On doing the show, Lulu revealed: "My grandchildren love this show, they love it! I love it too and that’s why I’m here. Because it’s such a fun show."
The first contestant on the series to be eliminated was Ghost, who turned out to be former footballer and presenter Chris Kamara.
Asked why he did the show, Chris said: "I did it for the grandkids. I want to see the surprise on their faces when they see me unmasked on the show. Not even my wife knows so it’s going to be a surprise for the whole family.
"I’m not the best at keeping secrets so I’m not sure what will shock them most, taking part in the show or keeping it a secret."
Chris said he found it particularly difficult wearing the costume - as it was quite "restrictive".
The Masked Singer airs Saturdays at 7pm on ITV1 and ITVX.
