After months and months in which we've seen 35,000 young Australian Idol hopefuls cut down to just two, this Sunday we will find out who will take the 2007 title. But, as always, the event will be so much more than that, with a truly star-studded guest list performing.

The show kicks off with the massive outdoor concert on the step of the Sydney Opera House with performances from Australian Idol royalty Shannon Noll, Damien Leith and Young Divas. Also joining the stellar line-up will be Rogue Traders and, in their first live commercial tv performance in over 10 years, re-formed Aussie rock legends Divinyls.

The band have already played a part in this year's competition with Natalie Gauci's memorable performance of their first hit "Boys In Town", which saw her jumping atop a piano as she belted it out in a spectacular fashion.

The Grand Final will also be your chance to catch up with the entire 2007 Australian Idol Final 12 as they take to the stage once more. Holly Weinert, Brianna Carpenter, Lana Krost, Mark Da Costa, Jacob Butler, Ben McKenzie, Daniel Mifsud, Tarisai Vushe, Marty Simpson and Carl Risely will all be there.Of course the stars of the show will be finalists Natalie Gauci and Matt Corby,  who nervously await your judgement.

The winner will see the night out with a performance of the Winner's Single "Here I Am" (available for digital download following the show), with their debut album "The Winner's Journey" released in just a week and The Winner's Journey Tour in the new year. Everything is on the line and the decision is up to you!

Don't forget to vote and make sure you're tuned in for the result this Sunday at 7.30pm on Network Ten.