Britain's Got Talent viewers are convinced they've cracked the secret behind a magic act that left the judges stunned.
The hit ITV show returned on Saturday, with dazzling illusions once again proving a fan favourite.
But when magician Fabian Fox took to the stage, his performance quickly sparked debate among those watching at home.
Introducing himself to judges Amanda Holden, KSI, Alesha Dixon and guest judge Stacey Solomon, Fabian set up his trick with two large curtained platforms positioned behind him.
He claimed he would transport a man and a woman from one platform to the other using his own powers.
To prove it was the same person, the woman was asked to hold a single white trainer during the 'teleportation.'
When the moment arrived, Fabian appeared to successfully move her across the stage, leaving the audience and KSI visibly stunned.
The woman on the second platform was still holding the trainer, seemingly confirming the illusion.
However, viewers at home were quick to question the trick, with many taking to social media after spotting what they believed was a tell-tale sign that the act wasn't as it seemed.
One viewer even took to TikTok to share their theory, highlighting a small detail they believed gave the trick away.
In the video, she pointed out that on the first platform, the woman was holding the trainer with the laces untied.
However, after the supposed 'teleportation,' the shoe appeared to have its laces neatly tied.
She also noticed a slight difference in the woman's hair, leading her to speculate that the act may have involved two identical-looking performers.
The clip quickly gained traction, with other viewers weighing in with their thoughts on the BGT illusion.
Before the teleportation, the laces were undone on the trainer
However, after the supposed 'teleportation,' the shoe appeared to have its laces neatly tied
Viewers at home were quick to question the trick, with many taking to social media after spotting what they believed was a tell-tale sign that the act wasn't as it seemed
'I said the 2nd twin looked different. its a morrored effect clever but this wasnt a clean trick',
'Everyone knows its twins because of the film "prestige" but..... where are they hiding? I want to know that',
'Her hair is completely different too! How did I not get onto that',
'Having all the people on stage is a distraction. the twins coming in from the side of the stage',
'The 2nd girls hair is thicker & longer',
'Girls hair was different too.'
Earlier this month a Britain's Got Talent act that 'should have stayed in the bedroom' was been bombarded with Ofcom complaints by sickened viewers.
Baron, 39, and Vesper, 44, appeared on the programme to show off their unique talent, which saw her swinging in the air from chain's attached to his ear lobes and nipples.
A Britain's Got Talent act that 'should have stayed in the bedroom' has been bombarded with Ofcom complaints by sickened viewers - as the studio audience were left shielding their eyes
Before that, Baron also attached some weights to his nipples and ear lobes, leaving the audience lost for words.
At the start of the segment, host Declan Donnelly told viewers: 'Obviously don't try this at home, it's very dangerous.'
While the audience were quite impressed, those watching at home were not and took to the UK's telly regulator to complain.
89 people took to Ofcom to share how unimpressed they were with the segment.
Daily Mail have contacted the show's representatives for comment.
And at the time, many took to X, formerly known as Twitter, to share how much they didn't enjoy it.
'This needs to stop in the bedroom, not on TV #BGT.'
'This nipple thing is atrocious.'
'OH GOD!!!!! Baron and Vesper truly brought the danger.'
After their performance, Simon asked: 'Who came up with the idea to do this?'
Vesper explained: 'It was a lot of brainstorming and the physics behind it and how it would be possible.'
Alesha added: 'Can I just say, Vesper, you look so hot!
'But do you know what, I couldn’t actually watch you properly because I couldn’t take my eyes off what Baron was doing.
'It was like something out of a horror movie.
'I found it difficult to watch, and weirdly brilliant.'
Amanda decided to give them a 'massive yes', as well as Alesha, but KSI decided to give them a no.
Then when the vote went to Simon, he decided to ask the audience - and they all cheered.
He told them: 'The audience here like you, so it's a yes!'
As they walked off, KSI said: 'There is definitely an audience for that though.'
Alesha joked: 'I need a minute to calm down from that.'
Britain's Got Talent airs on ITV1 and is available to stream on ITVX.