POPSTAR Sia is known for keeping her body - and even her face - under wraps, so fans were left stunned when she posted a brazen naked picture of herself on Twitter.
The Dusk Til Dawn vocalist decided to make the cheeky post after learning naked images of her were being sold on the internet.
Showing her witty side Sia, 41, uploaded a photograph showing her bare backside and body facing away from the lens, which appeared to be the one doing the rounds.
Alongside she wrote: "Someone is apparently trying to sell naked photos of me to my fans. Save your money, here it is for free. Everyday is Christmas!
The post looked to be that of a professional image taken when the star was unawares.
Fans of the Australian were quick to give her a virtual high-five with one writing: "How dare they? You are amazing, keep being strong ♡"
Another bluntly put: "Omg. Queen," as a third giggled: "Hahaha I love you Sia."
Another rounded off with: "Do not mess with the Queen."
A Sia fan surmised: "This is a f***ing statement and I'm living for it."
The star is renowned for her range of trademark wigs and again shocked fans earlier this year as she revealed a mask-free, fresh-faced look when arriving at LAX.
Zayn Malik releases teaser video for his new signle Dusk Till Dawn featuring SiaShe is known for covering her face with full head wigs whenever she performs on stage, while she hides behind dancers in her music videos.
Meanwhile the star split from her husband Erik Anders Lang in December last year after two years of marriage.
In a joint statement released to People magazine, the couple said: "After much soul searching and consideration we have made the decision to separate as a couple. We are, however, dedicated to remaining friends. There will be no further comment."
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