At the end of the first season final Keith Urban announced he would be leaving 'The Voice' as coach. He soon after was confirmed as the new judge on American Idol (2002). Speculation mounted in the media on who would replace him on The Voice Australia - candidates named included Darren Hayes, Vanessa Amorosi, Natalie Imbruglia, and John Farnham. Ricky Martin was officially named as Urban's replacement on 29 November 2012.
In November 2013, founding coaches Seal and Delta Goodrem both announced they were leaving the series to pursue their solo careers. They would eventually return to the show.
As of 2021, Delta Goodrem is the only original coach to appear every season. Kelly Rowland has 3 wins as a coach since joining in 2017.
Guy Sebastian's brother Christian auditioned twice and made it both times. The second time he made it all the way to the final where he won his season. His coach was Kelly Rowland even though his brother turned his chair during his second blind audition. Guy mentioned that even though he wasnt chosen he was proud of him.
Guy Sebastian is the first coach in history to break the rules as he accidently turned his chair despite having a full team. His penalty was during the Battle Rounds he had to eliminate two people instead of one.