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.

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.