Who Is Robo Girl on 'The Masked Singer'? Fans Think It's a Major Pop Star

The Masked Singer fans think they may have worked out who the famous face is behind the Robo Girl costume.

Robo Girl made their debut on the Fox singing competition on the October 19 episode, which was Andrew Lloyd Webber-themed, and was crowned the Queen of the episode.

During Andrew Lloyd Webber Night on The Masked Singer, Maize was revealed to be Sex and the City actor Mario Cantone and Mermaid was revealed to be singer Gloria Gaynor.

Gaynor was unmasked after facing off with Robo Girl. Both sang "Don't Cry for Me Argentina" from Evita and Robo Girl won the battle, therefore moving on to the next episode unmasked.

Robo Girl is set to compete again on October 25 and will face Beetle and Lambs on the Muppets-themed installment.

After her debut, The Masked Singer panelists gave their guesses about Robo Girl. Robin Thicke guessed Step Up star Jenna Dewan, Nicole Scherzinger thought it could be Nope actress Keke Palmer and Ken Jeong thought it could be Only Murders in the Building star Selena Gomez.

Fans at home, however, have their own predictions and Newsweek has everything you need to know about who viewers think Robo Girl is on The Masked Singer.

Who Is Robo Girl on 'The Masked Singer'?

Following her debut on The Masked Singer fans believe that Robo Girl is actress and singer Kat Graham.

Some fans have stated that the surfboard in her clue package is a nod to the Teen Choice Award she won for her role of Bonnie Bennett in CW drama The Vampire Diaries.

In the package, Robo Girl called her fanbase "magical" and said they gave her "supernatural confidence," which viewers believe is a hint to her role as Bonnie, who was a witch.

Other viewers are convinced Robo Girl is singer Bebe Rexha due to a clue of two "B" music notes.

Taking to Twitter, one posted: "I wanna jump on the 'Robo Girl is Kat Graham' bandwagon but those two B music notes are leading me towards Bebe Rexha #TheMaskedSinger."

"Mermaid was easy due to the clues. I didn't recognize her voice though. The only guess I have for Robo-Girl is Bebe Rexha based on the clue of the staff with two Bs. No idea about the voice or anything else. #TheMaskedSinger," added another.

So far on The Masked Singer Season 8, William Shatner, Montell Jordan, Chris Kirkpatrick, Eric Idle, Jeff Dunham, Daymond John, and The Brady Bunch stars Mike Lookinland, Christopher Knight and Barry Williams have been revealed as the voices behind the masks, as well as Cantone and Gaynor.

Only Harp has managed to remain unmasked, though fans are convinced she is Glee actress Amber Riley.

The show's executive producer, Craig Plestis, has previously revealed that this season the costumes are actually clues for the identities of the performers.

He told Entertainment Weekly: "Especially for certain ones like Venus Fly Trap, that costume is a clue. This season, all these costumes, there's a real reason why each celebrity is in each costume."

It has also been confirmed that the Season 8 contestants boast a combined 32 Grammy nominations, 16 Emmy wins, eight gold albums, four Golden Globe nominations, 42 books, 10 Teen Choice Awards, and five Stars on the Hollywood Walk of Fame.

The Masked Singer airs Wednesday nights at 8 p.m. ET on Fox.