Eagle-eyed viewers of The Masked Singer Australia have taken over social media, convinced they know who Frillneck is and they're not backing down.
Eddie Perfect, who is currently based in Melbourne where the show is being filmed, is fans' number one pick as the man behind the Frillneck mask.
Early on, Frillneck says he's "not someone who works nine to five", which is believed to be in reference to the fact Eddie was going to join the cast of Dolly Parton's 9 to 5 The Musical before the pandemic struck.
In the most recent video featuring Frillneck clues, he tells us: "Kids see me for what I am, even though others can't see me at all. What a hoot!" Eddie has been a host on Play School which ticked a box for fans.
"I'm an artist, but what kind exactly?" he says as he paints a cockatoo before continuing, "I'm not sure myself, but I do know that I have an active imagination, I can create entire worlds!"
Eddie's Instagram account is filled with a number of paintings he's completed, including a cockatoo.
The video then shows a clock with the time 16:51, another reference to nine to five, alongside a black and white striped jacket.
"To do what I wanted to do, I had to move far away, several times. No town is big enough for what I do!" he added.
Eddie has moved to the US for work and lived in numerous cities.
Another clip shows Frillneck playing chess with beetles with a glass of juice nearby along with a cola drink.
Fans were quick to say that this and the black and white jacket were in reference to the Beetlejuice stage show, which Eddie adapted. He also had a one man show called Drink Pepsi, B***h.
Frillneck says, "In life, you never know what the right move is, so I like to take risks. They don't always pay off, but no pain, no gain. And remember, your critics aren't always right! That's why sometimes you have to ignore the rules."
This had many believing it was in reference to the fact Beetlejuice on Broadway was initially panned by critics before becoming a cult classic.
We then see a protest, with the camera focusing on a sign reading, "I love Tony," which had fans assuming was in relation to Eddie's hopes of winning a Tony Award after being nominated in 2019.
At the end he adds: "I don't care what Miley Cyrus says," which have many thinking he's referencing her song Nobody's Perfect.
Another clue was: "Jack Black and I were fascinated with the same incredible creature." Eddie wrote music for the King Kong musical, while Jack Black starred in the movie.
Some fans also believe it's possible that Frillneck could be Jimmy Rees, AKA Jimmy Giggle, of Giggle and Hoot, due to the references to birds, in particular the use of the word "hoot".
Tim Minchin's name has also been thrown around as an option.