She's best known for her side-splitting celebrity parodies on Instagram and raising a whopping $51 million in donations amid last year's devastating bushfires.
Now, comedian, actor and certified Aussie treasure Celeste Barber has thrown her support behind fashion brand Witchery's White Shirt campaign.
The annual campaign sees the retailer donate 100 per cent of the gross profits from the sales of a classic white button-up shirt — this year's was designed by Toni Maticevski — to the Ovarian Cancer Research Foundation.
Celeste tells Yahoo Lifestyle that before coming on board as the 2021 ambassador she had 'no idea' about the eye-opening facts attached to this particular women's health issue.
That one woman in Australia dies every eight hours from ovarian cancer or, unlike other gynaecological cancers, there's no early detection test.
"I was shocked to hear of the statistics surrounding ovarian cancer," she says.
"When I learned more about it, I was more than happy that my stupid face could help get the word out. The OCRF need money to find an early detection test and I jumped at the chance to help."
After years of making millions upon millions of people laugh with her '#celestechallengeaccepted' Instagram posts, Celeste's decision to lend her categorically un-stupid visage to such a weighty cause is a change of pace.
So, how does she feel about switching from satirising stars and their ridiculous lives to something a little more serious?
"I feel great about it," she says. "It would be great if everything could be shits and giggles all the time and I truly believe that laughter is so important, especially in tricky situations.
"However, for a lot of people, it’s more complex than that. This is a serious issue that I am more than happy to lend my face to."
The Toni Maticevski-designed OCRF Cotton Shirt is available now in-stores and online for $129.95 in sizes 4 to 16.
In true Celeste fashion, she already has big plans for her shirt's glamorous first outing:
"I’ll style that bad boy up with some denim shorts and a sneaker and hit school run," she says.
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