Celeste Barber is known for her spoof videos that send up A-list celebrities. 

The comedian was at it again on Sunday, sharing a video in which she imitated Britney Spears while celebrating the pop star's freedom from her conservatorship. 

In the first clip, Britney, 39, strutted her stuff in a red dress, and in the second, Celeste, 39, copied her moves in a similar frock. 

In the second video, the Stronger hitmaker showed off her midriff in a white crop top, paired with black shorts and a hat. 

Celeste wore a similar outfit as she gyrated for the camera, before Britney appeared on screen in a short, white lacy gown that resembled a wedding dress. 

In the next clip, the funny woman danced around in a somewhat similar sequined gown with feathers. 

She wrote in her caption: 'SHE'S FREE! Now get the hell out of her way.'

Britney has vowed to sue her father Jamie Spears for 'abuse' after finally being freed from a 13-year conservatorship on November 12, partly thanks to fans who spearheaded the 'Free Britney' movement.

Jamie was made conservator of his daughter's vast fortune in 2008 after Britney publicly struggled with addiction and mental health issues. 

It comes after Celeste created a social media firestorm earlier in the week when she openly mocked model Emily Ratajkowski. 

The Australian star imitated a post by Emily, seductively leaning against a column in nothing but a pair of g-string bikini bottoms.  

Like Emily, 30, Celeste teetered on sky-high stilettos - however she stood on Astroturf instead of the concrete-floored surface of the supermodel's fashion shoot. 

She captioned the spoof post, 'We are sick of you objectifying our bodies! Also, here's my a**.'  

'The internalised misogyny is overwhelming,' pointed out another user on Twitter.

'Misogyny is still misogyny even if you're the one making fun of women babes xx,' commented a third.

Another found the caption particularly galling given Ratajkowski had written an essay about her own feelings of objectification in The Cut.

'Have you read Emily's piece in The Cut? You should!' suggested another Twitter user.