Margot Robbie attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
John Travolta attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Rose Byrne attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Isla Fisher attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Delta Goodrem on the red carpet at the G'Day USA gala in Los Angeles, USA, Saturday, January 27, 2018. The G?Day USA black tie gala is the highlight of the annual event, produced by Australia?s Department of Foreign Affairs and Trade, Austrade and Tourism Australia. (AAP Image/Peter Mitchell) NO ARCHIVING
Ruby Rose attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Bojana Novakovic attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Australian Minister for Foreign Affairs Julie Bishop on the red carpet at the G'Day USA gala in Los Angeles, USA, Saturday, January 27, 2018. The G?Day USA black tie gala is the highlight of the annual event, produced by Australia?s Department of Foreign Affairs and Trade, Austrade and Tourism Australia. (AAP Image/Peter Mitchell) NO ARCHIVING
Olivia Newton-John attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Isla Fisher attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Emilie de Ravin attends the 2018 G'Day USA Los Angeles Gala at the InterContinental Hotel Los Angeles on Saturday, Jan. 27, 2018, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)