Who is Octopus?
Octopus has been confusing judges over whether their accent is really American or not, which has meant there have been some rogue guesses.
Now the character has been teasing how they might actually be an opera singer with some impressive vocals.
This means the overall favourite at the moment is Katherine Jenkins at 11/10, according to Ladbrokes.
Then Ashley Roberts is at 3/1, Sheree Murphy is at 3/1, Holly Vallance is at 4/1 and Dannii Minogue is at 5/1.
The Masked Singer final airs this Saturday on ITV.
All odds accurate as of 11am on Wednesday, February 15.