Although for a short while, KSI will be judging BGT contestants during the auditions.
The YouTube sensation talked about his excitement to be joining the fan-favourite show.
He said: “I’m so excited to be a guest judge for BGT. When I got the call up, I couldn’t believe it. I remember watching old BGT episodes and going from being amazed to laughing my a**e off. I’m buzzing to see all the fresh new talent, and I’ll be sure to leave a mark.”
Simon Cowell has had a fair bit of flak over the years, but it reached new levels at the Britain’s Got Talent auditions in Blackpool.
The production team found the recording of the show at the Winter Gardens was constantly interrupted by rowdy hecklers.
Despite being booed and called "an old fart", the media mogul remained unfazed in the face of abuse.
An insider said: “Simon isn’t vain in that way and found the heckling absolutely hilarious — even when they were calling him an old fart.
“He loves having BGT in Blackpool precisely because the crowds are so raucous and enthusiastic.
“And he knows that sometimes he might be on the receiving end of their passion."
BGT's long-standing judge Amanda Holden has shared her impression of new panelist KSI.
Amanda believes the new face will attract more attention to the show on social media.
She said: “KSI was like a rabbit out of a trap.
“He was brilliant and just ran up on stage to take part in some of the acts and it took the pressure off us.
“There are a couple of moments with him that I think will go viral, and Simon seems to volunteer quite often now too."