For the last couple of months, Britney Spears has been uploading a series of strange videos to Instagram - fueling the "Free Britney" movement like never before.

But concerns have arisen again after she posted a recent photograph to her socials and it's got fans convinced that she's been replaced by a lookalike.

You'll want to see this one, ladies and gentlemen...

Britney Spears fans are beyond worried.

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The star, who was been posting some concerning content on her Instagram has "called out for help" in her most recent post and it's actually pretty frightening.

We all know Britney Spears has battled through years of mental health problems...

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And this week matters have reached new heights after a particular post garnered a strong reaction from her followers.

Britney was catapulted into fame from a young age.

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Since starring in The All-New Mickey Mouse Club, aged eleven, she embarked on a highly successful career as a singer and performer with the release of the hit single "...Baby One More Time" in 1998.

Britney quickly became one of the most famous popstars of her decade.

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With hits such as "Oops, I did it again," "Slave 4 U," and "Britney," the Mississippi born singer consistently topped the charts.

She was even affectionately hailed the princess of pop.

Britney seemed to be at the peak of her career - churning out hit after hit.

But, early on, Britney's life started to take a turn for the worst.

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Bad press began during Britney's breakup from husband and childhood sweetheart, Justin Timberlake, which was a very public and ugly split.

Justin famously sold Britney out following the ugly breakup...

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The singer sat down for an interview on 20/20 in which he revealed that he had, in fact, been intimate with Spears - even though the singer had repeatedly told the press that she planned on remaining a virgin until marriage.

Things only got worse from there.

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Britney's mental health began to dramatically deteriorate, and the endless attention and pressure from the public and the press alike started to take its toll.

And in 2007, Britney finally snapped.

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The singer suffered a highly-public breakdown in the full glare of the world's spotlight.

Her breakdown was triggered by a number of different factors...

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She had spent years battling mental health problems and, after her split from husband Kevin Federline, the father of her 2 sons, she headed to rehab in Antigua.

However, her stay didn't last...

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Birtney checked herself out after only twenty-four hours and flew back to L.A.

The pictures of her hacking her own hair off shocked the world.

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Britney had walked into Esther's Hair Salon in Tarzana, an upmarket neighborhood of LA, and asked the owner to shave her head because her hair extensions were too tight. And, when the hairdresser refused, the singer grabbed the clippers and went on to shave off her long locks herself.

Britney's breakdown was publicized all over the world.

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The image of Britney, then aged thirty-seven, emerging from the salon with a freshly-shaven head and attacking a paparazzo's car with an umbrella became one of the most famous snaps of that decade.

A few months following this, Britney was hospitalized.

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In January 2008, she was seen being carried out of her house after reportedly overdosing on prescription amphetamines and locking herself in the bathroom with her youngest son, Jayden, as she refused to hand him back to Federline, who had full custody of the children.

It was a long road to recovery for the pop star...

But she was gradually able to rebuild her relationship with her sons after regaining some of her custody rights and get healthy, before eventually starting to focus on her music comeback. And, despite a few health issues along the way, Britney has become an icon in her own right.

She has gone on to win a number of awards...

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And has since continued making huge strides forward, winning back custody of her children, making more successful music, landing a lucrative residency in Las Vegas, and having a number of healthy relationships. She is even in a happy, long-term relationship with her actor boyfriend, Sam Asghari.

However, one sinister consequence of her breakdown still remains to this day.

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Since her 2007 breakdown, Britney's dad, Jamie, has had full control over pretty much every aspect of her life.

A Los Angeles court named Jamie as the permanent conservator of his daughter’s affairs in 2008...

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And he was named as the permanent co-conservator of her estate, along with an attorney, Andrew Wallet.

Fans believe that, to this day, Britney's dad dictates her every move...

And many are finding the whole set up to be incredibly problematic, not to mention detrimental to Britney's mental health and overall wellbeing.

In fact, this post went viral are for some seriously sinister things about the conservatorship.

"I know some people’s instincts might be to not take this seriously or laugh because the world has made a joke of her existence to a certain extent, but this is a woman who is denied access to her own children, finances, and any control over her own life. The law is corrupt and so are the middle-aged men who are ruining a thriving, successful woman’s life," wrote the fan on Instagram.

Some fans are taking matters into their own hands after seeing some "disturbing" content on her social media.

Supporters of the Free Britney movement have set up a petition that has so far been signed over 102,000 times.

Now that it has received over 100,000 signatures...

The White House has to respond.

The discussion about mental health has never before been so rife...

But a recent Instagram post has just doubled fans' concerns and within hours, comments about Britney being replaced by a "lookalike" started popping up.

Here's the full Instagram post with the caption:

We really hope Britney manages to get the help she needs. Keep scrolling to see why some of her fans are claiming "double standards" for the way the singer has been treated...