Britain's Got Talent judge KSI got an unexpected surprise in an audition twist tonight after being pranked by a member of his family.

Taking to the stage tonight to audition for the ITV reality show was a mysterious performer who went by the name of The Tormentor.

The cloaked figure, who was wearing a mask to hide his true identity, enlisted the help of 2025 guest judge KSI for his act.

Preying on KSI's fear of insects, the hooded figure tied KSI to a chair and showed him a terrarium filled with bugs, which made the judge scream.

After blindfolding KSI, the performer pulled out a feather, which he showed to an amused audience, and tickled the judge with it, mimicking the feeling of insects running over his face.

britain's got talent ksi deji
ITV

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Screaming in fright, KSI was visibly scared and nearly in tears while judges Simon Cowell, Amanda Holden, Alesha Dixon and Bruno Tonioli looked on in horror and amusement.

After a few moments of torment, the figure was eventually unmasked and revealed to be KSI's own brother Deji.

Fuming at his brother's trick, KSI pressed his own red buzzer and proceeded to press all of the other judges' red buzzers, telling his brother to "get out".

Viewers took to social media to voice their opinion on the prank. Some viewers enjoyed the stunt, while others called it "obvious".

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"Deji going on this show just to torture his brother is sending me so bad," penned one amused viewer on X. Another wrote: "Nah that being Deji was brilliant #BritainsGotTalent #BGT."

While one viewer said: "Deji just owned KSI! He actually deserved a golden buzzer for that prank... brilliant #BritainsGotTalent."

Some were less enthusiastic about Deji's appearance, with one viewer saying: "So just a joke act, to waste time, that was [wasn't] funny or entertaining. #BGT."

"I think everyone watching knew that was Deji right from the start, it was obvious…#BGT #BritainsGotTalent," penned another.

Britain's Got Talent airs on ITV1 and ITVX.

Read more Britain's Got Talent news on our dedicated homepage

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Lettermark

Reporter, Digital Spy

Harriet is a freelance news writer specialising in TV and movies at Digital Spy

A horror enthusiast, she joined Digital Spy after working on her own horror website, reviewing films and focusing largely on feminism in the genre. 

In her spare time, Harriet paints and produces mixed-media art. She graduated from the University of Kingston with a BA in fine art, where she specialised in painting. She also has an MA in journalism from Birkbeck University.