Emma Willis hosts the second Knockout round, as 12 acts perform for a place in the live semi-final. Coaches Will.i.am, Tom Jones, Olly Murs and Meghan Trainor are in the red chairs as the acts they have chosen from the blind auditions and the Battle Rounds fight for a place on their coach's team.
Elenco: Will.i.am , Tom Jones , Emma Willis , Marvin Humes , Ricky Wilson , Danny O'Donoghue , Reggie Yates , Holly Willoughby , Jessie J , Jennifer Hudson , Gavin Rossdale , Boy George , Kylie Minogue , Paloma Faith , Rita Ora .