She was joined by returning coach, Seal, returning for his third season after a three-year absence and new additions Boy George and Kelly Rowland, replacing Jessie J, The Madden Brothers and Ronan Keating, respectively.
[4] On 24 December 2016, via the show's Facebook page, it was announced that former The X Factor USA judge Kelly Rowland would be joining the panel as the fourth and final coach to replace Ronan Keating.
The judges also get two 'steals' each for the entirety of the knockouts, which allows them to steal a rejected act from another team.
Australian sister band The Veronicas performed their new single "The Only High".
At the end of this episode, four artists will advance to the grand final, while the other four will be eliminated.