KSI's brother Deji shocks Britain's Got Talent judge as The Tormentor unmasked

KSI got quite a surprise on on Saturday night, as his own brother Deji appeared amid The Tormentor's audition.

The mystery hooded figure wore a mask to shield their face, but soon his true identity was exposed. They performed an eerie act, leaving guest BGT judge KSI screaming and on the verge of tears as he was forced to face his fears.

After being called to the stage by the performer, the hooded figure teased him with private details of past loves before presenting him with his biggest fear - bugs. He was blindfolded and tied up before being taunted by the unknown auditionee.

What KSI didn't know initially though was that the masked man was someone linked to him, and someone he knew very well. He was also a familiar face, and the twist left KSI openmouthed in shock.

It all kicked off when KSI was forced to sit down and be tied up, watching as the performer brought out a box containing insects. KSI screamed loudly begging him to stop.

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KSI was then blindfolded as he wriggled around, "daring him" to do his worst. The Tormentor then showed the audience what it was he was going to do, waving around a feather.

With that he began tickling KSI who begged for mercy. When it all came to a stop he told KSI he had one more thing to show him, before taking off his mask.

With that KSI gasped as the masked performer announced they were Deji, his brother. KSI fumed at his brother, even pressing his red buzzer and telling him to "get out" as the other judges applauded him.

Speaking after the stunt to terrified KSI said he had no idea it was about to happen. “I was blind to it all,” he insisted. “When I got pulled up on stage, I just thought, ‘Here we go. How is he going to torment me?’

“He gets me up on stage and he mentions a girl I was involved with years ago, no one really knows about her, only a specific few people do.” Initially in the dark about who it could be, KSI said he thought it was a mind magician.

“There’s this guy I’ve seen who goes to different artists, like musicians, and he interviews them and he's able to say things to them that no one knows,” he explained. “He's able to just do stuff like that and everyone's always there, like, ‘how do you know that? Who's told you that? This is crazy. Like, no one should know this’. So I was thinking it was something similar to that.

“This guy is gonna just say things that no one should know. I was tripping balls! I couldn't believe it. And then he gets bugs out, that’s a genuine fear of mine.”

Britain’s Got Talent airs Saturdays at 7PM on ITV1 and ITVX. * Follow Mirror Celebs and TV on , , , , , and .