Stormzy is set to be a guest judge on 'The X Factor'.

Stormzy

Stormzy

The 24-year-old grime artist is reportedly set to accompany fellow musician Nicole Scherzinger on the popular talent show, and will jet off to South Africa with the brunette beauty to help whittle down the contestants during the Judges' Houses auditioning process next week.

And it is believed the 'Shut Up' hitmaker - who is currently dating Maya Jama - will prove to be a good critique as he "speaks straight from the heart."

Speaking about the British rapper's next venture and involvement in this season's show to The Sun Online, a source said: "Stormzy is the man of the moment and will also make great telly.

"He speaks straight from the heart and won't pull any punches."

And music mogul Simon Cowell is looking forward to seeing the "onscreen chemistry" between Stormzy - whose real name is Michael Ebenazer Kwadjo Omari Owuo Junior - and the former Pussycat Dolls band member.

The insider added: "Simon is looking forward to seeing his onscreen chemistry with Nicole."

Whilst Stormzy is on hand to share his opinions on the contestants with Nicole, who will be mentoring the Overs category, Simon is believed to get the advice of former 'The X Factor' panellist Cheryl Tweedy.

However, Sharon Osbourne and Louis Walsh's guests have yet to be confirmed.

And Nicole, who previously guided James Arthur and Matt Terry to victory, is sceptical about her chances of triumphing again with one of her hopefuls.

Speaking previously, the 'Don't Hold Your Breath' hitmaker said: "I'm always very competitive. I put a million per cent into everything I do, but two years in a row? I don't know about that."

And the artist is already backing someone from one of the other groups to win this year's series.

She added: "It's interesting because I have a feeling about somebody who is going to win - but they're not in my category.

"I'm upset because [the producers] were going to give me a category and I said, 'No, I want this one instead'. I got what I wanted but I really should have had what they were going to give me."