She has taken on some of the world's biggest celebrities with her side-splitting parodies on Instagram. 

And Celeste Barber has now taken aim at American model-of-the-moment Kaia Gerber in her latest spot-on spoof.

The Aussie comedian, 40, posted a side-by-side photo of herself emulating the 20-year-old's recent nude shoot for luxury brand Loewe. 

Kaia's high-fashion shoot saw her take a bubble bath in the middle of a car park. 

Covered in suds, the seemingly naked model seductively pouted at the camera while clutching a black Loewe handbag.

Celeste copied Kaia's image to perfection in her parody on Monday, stripping nude and sitting in a clear plastic tub in an alleyway.

Celeste placed some suds on her chin, making her look like she had a beard.

'Kaia and I are excited to launch our new collaboration, Hygiene Chic,' she captioned the snap, adding: '*None of this is true.'

Kaia took the parody in good humour, commenting on the post: 'The greatest honour.'

In January last year, Celeste revealed that some models, actresses and influencers had blocked her on Instagram because they didn't like being made fun of.

'Some people don't like it. People are allowed to be sick of being made fun of, I get it. People have blocked and are not into it, no problem. Moving on!' she said on Jameela Jamil's iWeigh podcast.

Celeste said her photos and videos are just lighthearted parodies and not intended to ridicule anyone.

'My intention with this has always been just to make people laugh, and where they take it from there is up to them,' she said.

'When people are like, "Do you feel mean or anything?" I'm like, "No." I only use photos they post. If it's a paparazzi photo I won't use it, unless they have.'

Despite this, Celeste admitted many celebrities are in on the joke, and even submit their own posts to be parodied.