Emma Willis and Marvin Humes present the first of the knockout rounds. The coaches watch each of their eight contestants perform and must choose the best three acts from their team to continue on to the live shows.

Rita and will.i.am pit their remaining artists against each other to compete in one last round before the live shows.

It is now the artists who take control - they must each choose one 'killer song' that they think will give them the best chance to impress their coach. Which of Rita's acts, including Welsh school teacher Joe Woolford, Liss Jones or duo DTwinz, will she choose to take to the next round?

On will.i.am's team are acts including Essex rapper Brooklyn, former YouTube sensation Esmee Denters, and the first classical Irish opera singer to have ever reached the knockouts, Lucy O'Byrne.

Tensions and adrenaline run high as the artists give the performances of their lives to make it through the knockouts and on to the live shows. Show less