Sarah De Bono will sing for Joel Madden's team, with Karise Eden representing her coach Seal. Rachael Leahcar was chosen to represent Delta Goodrem's team, while Darren Percival will compete for Keith Urban.
Urban told reporters at a press call in Sydney on Tuesday (June 12): "I think there are some hard decisions and there are some really impossible ones... We've got some great singers, and then there are singers who, like with Darren, when I hear his voice, I know who he is."
Seal added that his decision to pick Eden was "pretty impulsive" as "she needed to go through".
Madden admitted that his decision was not an easy one, but hailed De Bono's star quality.
"At the end of the day I have to make the best decision for who I think could win this show, and that's the decision I made," he explained.
Goodrem said that she felt Leahcar - whose first audition went viral - still had more to give on the show over eliminated hopeful Glenn Cunningham.
"I found with Glenn that he kind of got to a point where I go, 'You don't need me anymore. I feel like I've done what I can with you right here', and it felt right for me to go, 'I still need to go with you, Rachael, we've still got a journey that we haven't finished yet'," she revealed.
The Voice Australia's finals will air on Sunday, June 17 and Monday, June 18 on the Nine Network.
Watch Sarah De Bono singing 'Here's Where I Stand' on The Voice Australia below: