Wearing a black two-piece, which included a scoop-neck, long-sleeved top with a wrap-around skirt, she teamed her look with a spiky gold headband and sunglasses.
But, despite her impending night of fun, the antipodean performer looked more like she was going to a funeral - failing to raise a convincing smile and covering her eyes.
Fortunately, she flashed a bit of leg which made the outfit look much more appropriate for some rock 'n' roll partying.
It also seems she'd taken style notes from Rita Ora, who similarly appeared in a revealing black suit.
Rita's ensemble, which featured white stiletto shoes and an ear cuff, featured a plunging neckline which revealed some peripheral cleavage.
The look is a dramatic change from earlier this morning when she was spotted arriving at the airport make-up free, looking tired and frumpy.
Perhaps she had taken inspiration from her shoot with Karl Lagerfeld, which features in magazine Next Line and hit newsstands today,
