The Masked Singer fans think they have rumbled the identity of Robobunny.
The mysterious character's rendition of Saving All My Love For You left the judges stumped as they struggled to agree on whether a male or female is hiding behind the mask.
But viewers think they've sussed it and it might not be who you think.
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Taking to Twitter, fans of the show appear to be in agreement that Robobunny is Westlife singer Mark Feehily.
@jessicanterbury wrote: "Just seen a video of Robobunny on the masked singer and I'm sorry but that is Mark Feehily, I have no shadow of a doubt. I've spent 22 years listening to that voice."
"Robobunny is absolutely Mark Feehily. Watching it back after you can tell from the first line," @_rainey posted.
@tayloraIiscns tweeted: "Please I can't wait to watch the masked singer UK this weekend bc at this point we all know robobunny is mark feehily."
Robobunny is expected to sing a song from A Star Is Born this weekend after The Masked Singer official Twitter account hinted at the song choice.
"What a treat! @MarkusFeehily as Robobunny will be performing Shallow. Who needs Lady Gaga and Bradley Copper when you can have a single lad singing the voice of two?? Watch out for the rabbit!!" wrote @WestlifeIE.
@contraryclarey wrote Can't wait to hear @MarkusFeehily AKA Robobunny singing Shallow, always wanted to hear his take on that! Let's hope there's no holding back to try to disguise that beautiful voice of his from us!"
The Masked Singer airs every Saturday at 7pm and Sunday at 7.30pm on ITV.
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