Emma Willis and Marvin Humes reveal the results of the public vote.

The singing contest returns for a fourth series as Rita Ora joins the panel.

The coaches assess the vocal talents of another ten hopefuls.

To Sir Tom's delight, this edition sees many Welsh faces behind the spinning chairs.

The blind auditions continue with surprises including trumpet-playing Dawn.

The blind auditions continue and include a celebrity chauffeur booker and an Essex rapper.

The judges hear from Beckenham duo the Rise, poet Lara Lee and Damian Dalton Smith.

The blind auditions come to an end as the coaches complete their teams.

Emma and Marvin present as the coaches pair up their acts to battle it out against each other in head-to-head musical performances.

In a nail-biting final battle, the remaining artists of each team take to the stage.

The coaches must choose the best three acts from their team to continue to the live shows.

The coaches must choose the best three acts from their team to continue to the live shows.

Featuring live performances from Olly Murs and 2014's winner Jermain Jackman.

Emma Willis and Marvin Humes reveal the results of the public vote.

The semi-final sees the coaches' remaining eight acts perform live in front of the nation.

The final four artists face the public vote in a bid to be crowned the winner.

Hopefils include a Dubliner with a unique voice, an eccentric rocket and a charity worker.

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Part 7 of the Blind Auditions, in which the singers are hidden from view and are judged solely on their voice. Coaches include Ricky Wilson, will.i.am, Boy George and Paloma Faith.

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The battle stages are now over, and Paloma Faith, Boy George, Will.i.am and Ricky Wilson each now have a complete team of would-be stars under their tutelage. The next challenge the contestants face is the first stage of the knock-outs, in which they must carefully select and perform a 'killer song' that will elevate them above their team rivals, as the coaches whittle their eight chosen singers down to three.

The battle stages are now over, and Paloma Faith, Boy George, Will.i.am and Ricky Wilson each now have a complete team of would-be stars under their tutelage. The next challenge the contestants face is the knock-outs, in which they must carefully select and perform a 'killer song' that will elevate them above their team rivals, as the coaches whittle their eight chosen singers down to three.

The first live show of the series arrives, as Paloma Faith, Boy George, Will.i.am and Ricky Wilson bring their teams to the quarter finals. Naturally, with the contest reaching its conclusion, the stakes have never been higher for the eight remaining contestants, who will need to produce barnstorming performances in order to secure a place in the semi-finals. After weeks of assessing the would-be stars from the comfort of their sofas, viewers at home now receive their first chance to voice their opinions via a public vote that will decide which act will be progressing to the contest's penultimate round.

Emma Willis and Marvin Humes announce the results of this week's public vote. For the first time this series, coaches Will.i.am, Paloma Faith, Ricky Wilson and Boy George have handed over control of the contest to the viewers at home, who ultimately decide which of the eight remaining contestants will be progressing through to the semi-final.