Emma, who has fronted the series for the past four years, has revealed she's correctly predicted the winners so far.
"In 2015, when Stevie McCrorie walked on stage with that voice and rocker dude image, I was like 'yesss' and then he ended up winning!" Emma told What's On TV.
She said: "I also predicted Jermain Jackman in 2014, Kevin Simm in 2016 and Mo Adeniran last year. I don’t know whether that means I’m an expert on music…
"We all have our own tastes and you’re listening out for a certain kind of voice, and I love certain types of singers and bands."
Emma told the magazine she was sure who would win in 2018, but wasn't revealing her prediction just yet...
Right now The Voice UK is in its battle round stages, as the four coaches whittle the acts in their teams down from 10 to 6.
Speaking from filming, Emma said: "The Battles are fantastic, but I don’t think you ever get desensitised to it. I’m not a singer and I don’t know how they feel, but I know what it’s like to love something and really want to achieve it, and then have that thing taken away from you.
"We’ve all been told no at some point. I’m human and I care about people’s feelings. It’s hard – and for the judges too!"
She added: "They finally get a team and then it’s like, 'You have 10 fantastic singers… and you have to let some of them go.'"
The Voice UK continues this Saturday night on ITV with the final round of battle performances.