In response, a Tik Tok user who has been vocal about being anti vaccinations went on a rant about Celeste, while also sprouting misleading information about immunisation.
“You tell me why a fat slob like Celestie [sic] Barber should be able to post on their Instagram and encourage other people to get the shot when people are being maimed and are dying by this?” the unknown woman yelled, while incorrectly pronouncing Celeste's name.
The 39-year-old responded to the troll with a video uploaded to her 8.2million Instagram followers.
“It’s Celeste, you f***ing idiot," she said.
Celeste later went on to poke fun at anti-vaxxers with a tongue-in-cheek video.
“I wanted to just quickly jump on here and just speak, I guess, mainly to anti-vaxxers. I hear that you guys are freaking out, I really hear it and I can feel it,” she said sarcastically.
“I just want you to know when I got my first Pfizer shot, about a week ago, the nurse who gave it to me, she actually shows you the 5G before she puts it in the vial which I think is really good.
"Also you’d also be surprised – I was very surprised, it blew my mind – at how small Bill Gates' DNA is and it also fits in the vial, as well, with the 5G.
“And she was saying to me, a nurse who’s been a nurse for 20 years or something, she said how grateful she is that she can get all the information from people who sell hats at the markets, and they know so much about it."
Celeste shot to fame for her hilarious recreations of iconic celebrity photos on social media.
Starting in early 2015, Celeste achieved international stardom and thanks to her project #CelesteChallengeAccepted which has garnered her an impressive fan base including celebrities themselves.
The mother-of-two has also made a name for herself on Australian TV.
She rose to fame on Aussie comedy series How Not to Behave and has appeared on Channel Seven's long running soap Home and Away, as well as All Saints, Neighbours and The Letdown.
Celeste is also a regular panelist on Have You Been Paying Attention? and has stood as a co-host on Studio 10.