Here’s everything you need to know ahead of Monday night’s grand finale.

Australian Idol's Iilysh Retallick, Marshall Hamburger, and Gisella Colletti.

Iilysh Retallick, Marshall Hamburger, and Gisella Colletti have made it to the grand finale of Australian Idol 2025. Photo: Channel Seven

The 2025 Australian Idol grand finale kicked off on Sunday night with Iilysh Retallick, Marshall Hamburger, and Gisella Colletti battling it out for the crown. The jam-packed episode featured solo performances from each of the three finalists, as well as a performance with an iconic Australian musician.

Iilysh rocked out on stage with Wolfmother, Gisella hit the high notes with Tina Arena, and Marshall belted it out with Leo Sayer. Voting is now open to determine the next Australian Idol, with the winner set to be announced on Monday night.

Host Scott Tweedie tells Yahoo Lifestyle he has “no idea” who will win the competition, which makes it “really exciting” for himself and Ricki-Lee.

“I think at the very beginning of this season, sometimes there’s one or two real standouts, but this season there was a whole bunch of them,” he shares.

Ricki-Lee, who competed on the show in 2004, also encourages viewers to get behind their favourite because there is often just “a handful of votes” that determines the decision.

“People are getting behind their favourites, but I feel like I’m a bit of an example sometimes that you have to vote for your favourites and you have to vote for the people that you love,” she remarks.

The winner of the singing competition will receive $100,000 in prize money, an exclusive recording package with Hive Sound Studios and the esteemed title of Australian Idol 2025.

Last year’s winner, Dylan Wright, who received a recording contract with Sony Music Australia before the prize changed, told Yahoo Lifestyle he planned on putting the money towards a holiday with his wife and two young children.

“The first thing I’m going to do is have a little trip away with the girls and just be a family for the first time in three months,” he shared. “I’ll have the phone off and just kind of drink in the moment.”

The 2025 Australian Idol finale continues at 7:30pm Monday on Seven and 7Plus, with the winner expected to be announced around 9pm.