She's no stranger to overcoming doubters, having blocked-out the noise to build a PR empire.
So when Roxy Jacenko's friends questioned her ability to sabrage a bottle of expensive champagne on Tuesday night, they earned a middle-finger salute.
In video footage, the 37-year-old expertly sabered the cork off a $260 bottle of Perrier-Jouët Rosé and thanked onlookers for their support.
'Ye of little faith!': Roxy Jacenko flaunted another of her many talents on Tuesday night, successfully sabering open a bottle of $260 champagne, before telling doubters to shove it
In the clip, Roxy flaunted her gym-honed physique in an off-the-shoulder black gown.
She was seen holding the bottle of champagne while pressing a large silver kitchen knife against its base.
A voice in the background, which appeared to be that of her jailbird husband Oliver Curtis, attempted to coach her through the delicate technique, saying: 'Slice! Slice.'
Careful! In the clip, the 37-year-old flaunted her gym-honed physique in an off-the-shoulder black gown and held a bottle of Perrier-Jouët Rosé while pressing a large knife against its base
Another, that likely belonged to her daughter Pixie, asked: 'What's she gunna do?'
But blocking out her family of doubters, she deftly sliced the cork off the expensive bottle in one easy movement and let out a gleeful shriek.
As bubbles spilled down the sides of the bottle and towards her legs, Roxy noticed a potential problem: 'My shoes!' she yelled.
A voice in the background, which appeared to be that of her