The Masked Singer aired a big clue for Otter tonight - and now fans are sure they know who it is.
As tonight's episode got underway, and the four panellists were joined by a group of celebrity sleuths, the pressure was on to work out who was behind the mask as two more face elimination. Following Otter's performance, fans tuning into the ITV show from home are convinced they know which celebrity has been performing as Otter.
Eagle eyed fans took to social media to share their thoughts on who might be behind the Otter mask after their performance of Cheerleader by OMI, which the panellists really loved.
Some fans are convinced Otter must be a comedienne but others think she could be an actor, with a sign in the first ever VT having spelled out the letters RADA, which is a high profile drama school.
There have been many links to water, swimming and diving - including on the person's costume - and some fans think this could link to them being a swimmer or that they have competed in diving reality show Splash.
They said they have done "serious" roles and also described themselves as "out of this world".
One clue in particular left the four panellists - Mo Gilligan, Davina McCall, Jonathan Ross and Rita Ora - very puzzled. "Children, some say, should be seen and not heard, but of this Otter, opposite is the word," Otter revealed as a clue to their identity.
In one visual clue, they were seen pulling a witches hat, nose and broom out of a lost property bag, whilst there was also a scarecrow in the pool. They also appear to have some sort of link to US reality star Kim Kardashian.
"You might remember me from something a little medical sounding," they said in one clue, whilst in another they added: "There’s an emotion I’m good at getting out of people, even when I don’t intend to."
Now fans are sure they know who's behind the mask, as one wrote: "Otter is daisy may cooper! Rubbish refers to her dress at the BAFTAS!! her saying don’t laugh refers to her book “Don’t laugh it’ll only encourage her” #MaskedSingerUK."
" Daisy May Cooper wore a bin bag dress to the Baftas once #MaskedSingerUK," a second added, as a third shared: "Otter had a bin bag in that VT. Daisy May Cooper wore a bin bag dress to the Baftas once… #MaskedSingerUK."
A fourth added: "Daisy May Cooper? Lives in Gloucester near a river (I think), her book is called 'Don't Laugh, It'll Only Encourage Her', and she's one of a double act in 'This Country' but that's all I've got on that one. Sounds nothing like her though."
