Finally the Priscilla bus arrived in Alice Springs, with the excited triple-threats first treating the residents to a flashmob rendition of Locomotion. Hugh then welcomed the first guest judge, musical star Lucy Durack, before leading the contestant into the Outback for their solos, which this week has to be performed acapella. The second guest judge, Aussie acting great Rachel Griffiths, was introduced before one by one the boys launched into song. The bottom three performed for their lives in the final show, to Cece Peniston’s Finally.