The Voice: Adam Levine with new mohawk escalates rivalry with Blake Shelton in Live Cross Battles

Adam Levine and Blake Shelton escalated their rivalry on Monday's episode of The Voice thanks to a brutal new Live Cross Battles round. The judges: Adam, John Legend, Kelly Clarkson and Blake pitted their singers against each other in the new Live Cross Battles round When host Carson Daly, 45, pointed out to Adam that he could 'decimate' Blake's team with his strategy, Adam smiled: 'I know!' Live battle: Selkii, 31, was picked by Blake to go up against Adam's 'unicorn' Mari, 20 Hard battle: Mari performed Troye Sivan's My My My during the new format Blake called Selkii, who performed Natalie Imbruglia's Torn, 'the real deal' – with John Legend telling them: 'I don't like to get in the middle of these two's fights!' Music future: Adam picked 17-year-old Celia Babini – who he previously called 'the future' of music - to represent his team against Blake's squad 'You are so many things that are so wonderful.