The show aims to find currently unsigned singing talent (solo or duets, professional and amateur) contested by aspiring singers aged 15 or older, drawn from public auditions.

Winners of the thirteen seasons have been: Karise Eden, Harrison Craig, Anja Nissen, Ellie Drennan, Alfie Arcuri, Judah Kelly, Sam Perry, Diana Rouvas, Chris Sebastian, Bella Taylor Smith, Lachie Gill, Tarryn Stokes, and Reuben De Melo.

The original panel featured Delta Goodrem, Joel Madden, Seal and Keith Urban; the panel for the upcoming fourteenth season will feature Kate Miller-Heidke, Ronan Keating, Richard Marx, and Melanie C. Other judges from previous seasons include Ricky Martin, Kylie Minogue, will.i.am, Benji Madden, Jessie J, Joe Jonas, Guy Sebastian, Kelly Rowland, Boy George, Rita Ora, Jessica Mauboy, Jason Derulo, LeAnn Rimes, and Adam Lambert.

[2] In this stage of the competition, the coaches divide their teams in groups of a specific theme and the contestants battle it out singing the same song.

[1] In September 2011, the Herald Sun reported that the Nine Network were planning to sign Australia's Got Talent judge Dannii Minogue as one of the coaches.

[4] Anthony Callea, Vanessa Amorosi and former Pussycat Dolls member Ashley Roberts all publicly expressed interest in coaching roles.

[9][10] Additionally, Ricki-Lee Coulter (with Seal), Darren Hayes, (Goodrem), Megan Washington (Urban) and Benji Madden (with brother Joel) were signed to pair up with the coaches as mentors for their contestants during the "Battle Round".

[13] Filming for the blind auditions stage of the competition began on 19 February 2012 at Fox Studios in Sydney,[8][14] with 121 artists featured in this phase of the selection process.

[15] The first day of filming resulted in hundreds of audience members being turned away from the studio due to overbooking of the event by an external booking agent.

[17] With Urban accepting an offer to join the American Idol judging panel it was announced in September 2012 that he would not be returning as a coach for the second season.

[18] Following an extensive search process by producers, and constant media speculation[19][20] on who would replace Urban, Ricky Martin was officially announced as the new coach in November 2012.

[21] Healy stated that Martin would bring "huge experience" and be the "perfect addition" to the coaching panel,[22] with Goodrem, Madden and Seal all publicly expressing excitement at the news via their Twitter accounts.

[26] On 28 December 2015, Ronan Keating confirmed he would replace Martin on the show's fifth season, alongside returning coaches Goodrem, Jessie J and The Madden Brothers.

[43] In August 2020, it was announced Seven Network had picked up the series for its tenth season, set to broadcast sometime in the following year, with Kruger returning as host.

Anja Nissen was announced the winner with Jackson Thomas in second place, Johnny Rollins in third, and Frank Lakoudis and ZK in fourth.

In January 2015, it was confirmed that Goodrem would return to her judges chair, and would be joined by former The Voice UK coach Jessie J and Benji Madden.

[25] Ellie Drennan was announced the winner with Joe Moore in second place, Nathan Hawes in third, and Liam Maihi in fourth.

[66][67] Alfie Arcuri was announced the winner with Adam Ladell in second place, Tash Lockhart in third, and Ellen Reed in fourth.

[69] Judah Kelly was announced the winner with Hoseah Partsch in second place, Lucy Sugerman in third, and Fasika Ayallew in fourth.

Sam Perry was announced as the winner[70] with The Voice Kids finalist Bella Paige in second place, Sheldon Riley in third, and Aydan Calafiore in fourth.

Each coach was allowed to advance a top four to the Finals: Diana Rouvas was announced as the winner with Daniel Shaw in second, Zeek Power in third, and Jordan Anthony in fourth.

In August 2020, it was announced Seven Network had picked up the series for its tenth season, set to broadcast in 2021, with Sonia Kruger returning as host.

In December of the same year, Seven announced that Guy Sebastian, Keith Urban, Rita Ora, and Jessica Mauboy were the coaches, replacing Kelly Rowland, Delta Goodrem and Boy George.

In October 2021, it was announced that Keith Urban, Jessica Mauboy, Rita Ora, and Guy Sebastian would all return as coaches for the eleventh series.

Meanwhile, Rita Ora, Jessica Mauboy, and Jason Derulo were replaced by LeAnn Rimes, Kate Miller-Heidke, and Adam Lambert.

In January 2025, Channel 7 announced the judging panel for the fourteenth season, which Sky News Australia described as a "mass red chair exodus".

The first season is hosted by Sonia Kruger and has Jessica Mauboy, Rita Ora, Guy Sebastian and Keith Urban as coaches.

Besides both winners, Darren Percival, Rachael Leahcar, Sarah De Bono, Prinnie Stevens, Emma Birdsall, Adam Martin and Lakyn of season 1, and Luke Kennedy, Emma Pask, Danny Ross, Ms. Murphy and Caterina Torres of season 2 have all signed record contracts with Universal Music Australia.

Possibly the most notable alumni of the series is season 2 finalist Celia Pavey, who has achieved a successful pop career in Australia under the name Vera Blue.

Another notable alumni is season 4 contestant Grace Pitts, who has had a successful career under the name GRAACE, receiving significant airplay on Triple J.