She was diagnosed with ADD at the age of 16, while attending Saint Joseph's College, Tweed Heads.
But I've since learnt, no, not the case, and being funny is the best and I love it… My late friend Mark Priestley, who worked on All Saints with me, was like, 'This is your niche', and he helped me focus on it".
[8] In early January 2015, the earliest instances of Barber recreating photos of celebrities began to emerge on her Instagram, after Celeste and her sister had been sending each other text messages of how women are supposed to do everyday activities and poking fun at the depiction.
After posting only a few, one in which Barber imitated a photo of Kim Kardashian in flimsy lingerie, lying on a mound of dirt went viral.
[citation needed] During the devastating 2019–20 Australian bushfire season Barber launched a fundraising appeal with a target of raising A$15,000 for the New South Wales Rural Fire Service's RFS Brigades Donation Fund.
The RFS and Barber's legal team worked together to find a way to disburse the funds more widely.
She has been interviewed by Drew Barrymore and Jimmy Kimmel, and her fans include Kris Jenner and Cindy Crawford.
As a social media influencer, she has found fame by creating videos satirising the image of celebrities presented to the world, juxtaposing them to her lived experience as a woman and a mother.