The pair will be taking to the stage live during next Saturday and Sunday night's live shows.
It was pianist Tokio Myers who won Britain's Got Talent 2017 back in June, winning a spot on the Royal Variety Show later this year and £250,000 in cash.
He will perform on The X Factor on Saturday night (November 4) ahead of releasing his debut album next month.
Called Our Generation, the record will be out via Simon Cowell's Syco label on November 17.
Earlier this year, Tokio also revealed his plans for the BGT prize money.
Tokio said he hoped to put at least some of the money towards a house.
But he also wants to help others, and plans to set up his own music school for those with disadvantaged backgrounds.
Tokio explained: “I would love to be able to set up my own music school one day to mentor and inspire other people.
“If I get a real shot at being successful I would love to do talks at school."
Rita Ora meanwhile will be singing Anywhere on Sunday's live show. (5th November).
Elsewhere, The X Factor 2017's next theme has also been confirmed.
Last weekend saw the first round of new look live shows, which began with the Boys and Girls singing on Saturday night where Spencer Sutherland went home and Grace Davies topped the vote.
On Sunday, the Overs and Groups sang and it was Talia Dean who was voted off while Rak-Su won the vote.
Grace then beat Rak-Su in a new 'prize fight' twist, in place of the ditched bottom two sing off.
The X Factor returns next weekend with a new 'Viva Latino' carnival theme.
Currently a total of 14 acts remain in the competition's final stages.
The X Factor 2017 continues next Saturday at 8:20PM and Sunday night at 7:05PM on ITV