In the Battles each Coach must pair up their acts to sing against each other in a vocal showdown to decide who will progress to the next stage.
After each Battle, the Artists’ own Coach must decide who will progress to the next round and who to send home.
But this year, there's an extra twist.
After each Battle, it’s not quite over for the losing Artist. In a dramatic new change to the format, the Coaches can “Steal” a losing Artist for their own team. So if they missed out on an Artist they loved during the Blind Auditions, now’s their chance to finally grab them for their team.
And Will is using the new format change to his advantage.
In one of tonight's battles, he purposely decides to save the weaker performer in a bid to get both through.
Will hopes that one of his rival coaches will want to steal the loser, saying: "I care about singers going trough rather than going through in my team."
However with just one steal each, will either Danny, Jessie or Sir Tom try make a move?
The Voice UK airs Saturday at 8:35PM on BBC One.
Browse pictures of the first Voice 2013 battles below...