It's the bonkers singing competition that continues to hook us in as we try and guess the identity of some amusing characters.
Of course, it can only be The Masked Singer and viewers of the show are pretty 'confident' they have worked out who Robobunny is after an off-screen clue.
Robobunny was the last to perform during the latest edition of the ITV show on Saturday night.
This week the cute yet robotic character chose to perform his - or her - version of The Music Of The Night from the Phantom Of The Opera.
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They were joined on stage by a carrot playing the piano for the mesmerising performance which left the panel of judges - Davina McCall, Rita Ora, Jonathan Ross Mo Gilligan, and guest star Olly Alexander - on their feet.
Guesses as to their identity have so far included Alfie Boe, Donny Osmond, Jason Derulo, Nile Rodgers and Friends star Matt LeBlanc.
But the panel are missing one name that is continually being spouted on social media from fans of the show.
And now The Masked Singer viewers think their theory has been confirmed thanks to a major QR clue.
Eagle-eyed fans have spotted that there is a QR code on Robobunny's costume and have been eagerly trying to get it scanned to reveal an additional clue.
As some finally got hold of the clue, they were quickly flocking to social media for help.
@3mmy85 said: "#MaskedSinger finally managed to scan the QR code for #Robobunny. Any ideas??"
"Just been watching the #maskedsinger and #robobunny had a QR code on the back which linked to this. Anyone else any ideas?" @liamsorsby tweeted.
@ShirleighShirlz added: "I SCANNED THE QR CODE ON ROBOBUNNY. WHAT DOES THIS MEAN?!?!?!?! #MaskedSingerUK."
And some think it points to one person and one person only.
@petraj76 tweeted: "#MaskedSingerUK #maskedsinger @ThisisDavina so after spending ages trying to scan the bar code on the back of robobunny and getting a royal barcode , tracking it to the royal variety show 1993, 2000 & 2003 I'm confident it's #markfeehily."
"#MaskedSingerUK #MaskedSinger I’m so confused with Robo bunny. Been saying from the start Mark Feehily. That code is the years that #westlife were in the royal variety show," @CeliaRosalyn said.
@MirraKel shared: "Scanned QR code on Robobunny.. Westlife did royal variety performance in 1999,2000,2003 Anyone not saying Mark Feehily is nuts, it’s so obviously his voice! #MaskedSingerUK."
"Westlife performed at the royal variety performance in 1999, 2000 & 2003. The same numbers on the Robobunny’s QR code… #MaskedSingerUK," @michellepryde commented with someone replying: "Also 3 albums with them dates."
On Saturday night's show Firework and Doughnuts were unmasked.
England striker Michael Owen and actress Jaime Winstone were revealed to be behind the extravagant costumes in a double elimination on The Masked Singer.
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