The Masked Dancer fans are convinced Friday's episode has given away the true identity of Squirrel.
Squirrel performed a routine to Camila Cabello's Havana before giving some fresh clues about who they are.
From references to Will.i.am and a clear skill in dancing, there were also apparent references to Newcastle and other possible links to the one and only Cheryl Tweedy.
Now, viewers believe that the Girls Aloud star is the mystery star under the costume after the latest routine.
Taking to Twitter, one fan said: "Definitely Cheryl Tweedy, newcastle references & colours plus Will I am had a huge crush on her."
Another tweeted: "I don’t know how I’ve ended up watching this ... but I’m saying Squirrel is Newcastle’s very own Cheryl."
A third added: "Why am I convinced squirrel is Cheryl."
The Masked Dancer UK launched its first series almost a week ago on ITV, and has aired every night this week asides from Wednesday.
Thursday night saw the first double elimination of the series, with another double exit confirmed for Friday.
So far, Llama, Beagle, Rubber Chicken, Beetroot, Flamingo and Viper have all been unmasked.
The celebrities identified have included singer Louise Redknapp, Diversity dance group member Jordan Banjo and burlesque dancer and American model Dita Von Teese.
Also unmasked were Ski Jumper Eddie the Eagle, Christopher Dean and Zoe Ball.
Judges Jonathan Ross, Davina McCall, Oti Mabuse and Mo Gilligan have now got to work out who the remaining acts are.
On Friday, it's semi-finalists Frog, Squirrel, Zip, Carwash, Scarecrow and Knickerbocker Glory competing once more.
Several names have been rumoured by fans to be in the costumes, after performances and clues across the week.
Tipped to be unmasked included Strictly Come Dancing and EastEnders star Maisie Smith, Mark Wright, Kelly Osbourne and Baga Chipz.
Other possible stars on the show are Louis Smith, Craig Revel Horwood, Frank Bruno and Howard Donald.
The Masked Dancer UK concludes Saturday at 7:30pm on ITV.
