Next week will see The Masked Singer UK head into the semi-finals, with Dragon, Badger, Robin, Sausage and Harlequin still in the running.
But could some Welsh stars be behind the masks?
ITV viewers at home and some of the judging panel certainly think so, especially following the latest clues and performances from the remaining contestants.
Following a double elimination, that saw Viking identified as A-ha singer Morten Harket and Blob unmasked as Sir Lenny Henry, there are only a handful of unmasked celebrities left.
Here are all the Welsh clues and theories, including the far-fetched ones, as the competition continues.
Robin
Popular guesses for the bird have included JLS star Aston Merrygold, Olly Murs and Westlife's Nicky Byrne. You can read more on that theory here.
However, following the latest instalment of The Masked Singer UK, some fans at home think it could be actor and singer Taron Egerton, who grew up in Aberystwyth.
In their latest VT, Jonathan Ross pointed out that Robin appeared to be wearing Elton John-style glasses, a clue many linked to Taron who played the singer in the hit movie, Rocketman.
There were also scenes with a crown in the teaser clip, which viewers thought was possibly a connection to Taron's lead role in the film, Kingsman. During their performance, Robin also stood in a nest of eggs, a reference to Taron's Kingsman character, Eggsy, possibly?
In 2018 Taron starred in Robinhood, which would see the costume itself then become a reference too.
Commenting on the theory, one ITV viewer wrote: "I think Robin is Taron Egerton. Tonight's clues were Elton John glasses (he played him in Rocketman) and the crown (Kingsman)."
Agreeing, another responded: "I was thinking the same thing. Plus he played Robinhood in the latest version of the film."
While a third added: "I think Robin is Taron Egerton. The crown references Kingsman and Robin's eggs also a clue to his name Eggsy in Kingsman. Also he a trained singer who played Elton John in his film and he wore those glasses tonight that Elton John wears."
Not everyone agrees, however, many thought the glasses were a link to Stars in their Eyes, pointing back to Aston Merrygold who competed on the show as a child with the song Rockin' Robin.
The judges guessed Adam Lambert, Diversity's Perry Kiely, Take That singer Mark Owen and former One Direction member Zayn Malik.
Badger
American singer Ne-Yo is a hugely popular fan theory, with viewers convinced they recognise his voice and claim the clues point in his direction. You can read more about this fan theory here.
Will Young and Jay Kay from Jamiroquai are two names that also keep cropping up, but one of the judges thinks it could be lead singer of Stereophonics, Kelly Jones.
Talk show host Jonathan Ross put the Welsh star's name forward following Badger's third performance, despite there being no clues to suggest him.
"I really think I know that voice," Jonathan said, adding: "None of the clues back this up whatsoever, but I'm going to stick my neck out, from the Stereophonics, I think Kelly Jones."
Rita also agreed Badger sounded like him during their version of Kelly Clarkson's Because Of You, however, many fans disagreed with the the expert panel.
Nonetheless, the odds for Badger, from Betfair, are as follows.
Ne-Yo: 5/6
Kevin Clifton: 5/2
Jay Kay: 8/1
Kelly Jones: 12/1
Ben Shephard: 25/1
Dragon
Popular guesses for Dragon are Sue Perkins, Courtney Act and Michelle Visage, however, another firm favourite is Ian 'H' Watkins from Steps.
Much of Dragon's VT scenes are filmed from a castle, which many believe is in Wales, they also think the costume itself could be a nod to the Welsh flag. Others think Dragon's singing voice sounds familiar too.
One fan wrote: "Still sticking with H from Steps for Dragon. No idea about the clues but sounds like him."
While another agreed, and said: "The singing voice sounds JUST like him."
And a third said: "Thinking Dragon is H from Steps. Lot of reference to Wales"
Others thought Dragon's choice of song, All By Myself, could refer to the single letter of his name, H.
However, one of the latest clues for Dragon left many scratching their heads.
"Dragons have a very varied diet, I've had duck tongues, udders, trotters, and even pigs bums," the character explained in their VT.
This led guest judge Alan Carr to suggest Carol Vorderman who has previously competed in I'm A Celebrity... Get Me Out Of Here! where eating trials are a big part of the show.
Speaking about The Masked Singer UK theories on BBC Radio Wales recently, Carol, who grew up in Prestatyn, said: "Talking about people pretending, okay, Dragon on The Masked Singer.
"So we're talking to judge Mo Gilligan after 12 and, well, some people think it's me and I can't say!"
She also teased people with a clip of herself singing a Cher song in 1998 on Stars In Their Eyes after Dragon sang a song by the same artist.
Posting the video, Carol wrote: "Dragon sang Cher? Hmmmmmmm........#MaskedSinger.... Stars In Their Eyes a few years back.... I've still got Cher in a bag in the attic btw..."
The Masked Singer continues Saturdays at 7pm on ITV.
