The former X Factor star is joining the coaches line-up.
The duo will also support Sir Tom Jones on tour this summer.
Find out what Jamie, Mo, Into the Ark and Michelle will be singing tonight.
Find out what the final 8 are singing this weekend.
Find out what the contestants are singing tonight.
Team will.i.am fight for their place in the competition tonight.
Team Tom are the next to face the live Knockouts.
Team JHud will be whittled down from six to three tonight.
There’s a second episode this weekend as the Battles heat up.
The Battles commence on tonight’s show.
See the first clips from this weekend’s Battle Rounds.
The blind auditions come to an end tonight.