London comedian Kojo Anim thanked the judge for his support during the process and then asked if he would like to visit his church.
Despite initially giving a look of horror, after listening to the 39 year old's comedy routine about long services, choirs and tithing, Cowell joked 'see you on Sunday'.
Praising his performance, he continued: "This show is nothing without people like you.
"That was fantastic...unreal.
"You've worked hard to get a break. This could change your life."
Anim has been one of the favourites of the series, and was awarded Simon Cowell's 'golden buzzer' during his audition meaning he moved automatically into the semi final which he won earlier in the week.
After being given a standing ovation he narrowly missed out on a place in the final's top three.
The show was won by Chelsea Pensioner Colin Thackery who won the heart of the nation with his singing.
He too was given a standing ovation for his rendition of 'Love changes everything'.
Thackery now takes away a cheque for £250,000 and will perform at the next Royal Variety Show.
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