THE VOICE: GUEST MENTORS REVEALED AHEAD OF THE SEMI-FINALS

The semi-finals of The Voice UK will see 24 acts sing for a place in the live final.

Coaches Sir Tom Jones, Olly Murs, Anne-Marie and will.i.am can pick only one act from their teams to progress in the competition, so there are some tough decisions to make.

Team Anne-Marie will be mentored by Little Mix's Leigh-Anne Pinnock

Team Will will be mentored by The Script's Danny O'Donoghue

Team Tom will be mentored by the Spice Girl's Mel C.

Team Olly will be mentored by James Bay

The Voice UK Semi-Finals begin next Saturday at 8:30pm on ITV.