PA reports that the 'Dirtee Disco' rapper will join jazz star Jamie Cullum and former Texas singer Sharleen Spiteri on the judging panel for the programme, which launches in August.
"I know how hard it is to break into the music industry and am giving all you fellow musicians out there a chance to come and show me, the other judges and the rest of the UK that we really do have some of the best musicians in the world right under our noses, who deserve a break. I'm here to give you that break," he said.
Cullum commented: "I know that some people may feel that their unique approach to music doesn't normally have a voice, but they are exactly who we are looking for - genuine talent in whatever form it takes."
Spiteri added: "Regardless of our differing music genres, ultimately we all have the same goal and that's to encourage unsigned and undiscovered talent to perform to the best of their abilities and give them the opportunity to succeed in something they are truly passionate about."
It has also been revealed that the winner of the competition will receive a £100,000 prize, along with support and advice from the three stars.