Overview
The fourth season of Australian Idol first episode aired on 6 August 2006 and concluded on 26 November.
Episodes
Auditions 1: Melbourne, Hobart & Alice Springs
Auditions 2: Perth & Adelaide
Auditions 3: Sydney & Townsville
Auditions 4: Queensland & Albury Wodonga
Semi Finals: Group 1 Perfom
Semi Finals: Group 1 Verdict & Group 2 Perform
Semi Finals: Group 2 Verdict & Group 3 Perform
Semi Finals: Group 3 Verdict & Group 4 Perform
Semi Finals: Group 4 Verdict
Final 12: Contestant's Choice
Final 10: Number One Hits
Final 9: The Year I Was Born
Final 7: Acoustic/Contestant's Choice
Up Close And Personal: Originals
Final 6: Big Band/Rock Swings
Final 5: ARIA Hall Of Fame
Grand Final: Performances