SARAH Harding is reportedly preparing to lift the lid on her rumoured feud with Cheryl and reveal the truth about life in Girls Aloud in an explosive new autobiography.

The singer is said to be planning to write a tell-all book about her time in the spotlight and her turbulent time in the spotlight following her Celebrity Big Brother victory.

16 Sarah Harding is reportedly planning to tell all in an autobiography Credit: Getty Images - Getty

The Daily Star reports that Sarah, 35, is hoping to capitalise on her CBB fame after winning the show last night by working on a new book project.

The autobiography will reportedly chart her rocky road to fame, including her battle with depression and booze, and reveal all about her time in Girls Aloud.

It will also reportedly reveal the truth about rumours of a longtime feud with her former bandmate Cheryl, who failed to publicly support Sarah during her time on CBB.

A source told the publication: "Sarah always wanted Celebrity Big Brother to launch the next chapter of her life.

"Her autobiography will chart everything up to her stint in the house.

"Then she can start afresh with her life.”

16 Sarah is long rumoured to have fallen out with former bandmate Cheryl Credit: Rex Features

16 Sarah is said to have fallen out with several of her former bandmates Credit: Getty - Contributor

16 Sarah cried tears of joy as she was crowned the winner of Celebrity Big Brother

16 She was visibly shaking as she walked out to see the huge crowds who had gathered to watch the final in the North London studios Credit: Rex Features

Sarah cried tears of joy as she was crowned the winner of Celebrity Big Brother 2017 last night, winning taking the crown with 35 per cent of the vote.

Walking down the stairs to meet Emma Willis, the singer couldn't stop bawling her eyes out and held her hands to her face to try and stop her tears.

MORE FROM THE HOUSE Exclusive 'i miss them' CBB's Sarah Harding sends emotional message to Girls Aloud - and says she didn't appreciate the band Spoiler booed again Sarah Harding claims CBB viewers hate her because they FANCY Chad - as her secret boyfriend admits 'heartbreak' at watching her antics Spoiler 'If you want full D, pay Full c' Chad Johnson demands CBB pay him £390,000 to show his 'full d***' in hilarious new task Exclusive SEXY SHOCK CBB's Helen Lederer accuses Sarah of 'training' Chad as part of a secret game plan 'chad's got a boner' Sarah Harding 'pole dances' to Girls Aloud song and Chad Johnson struggles to hide his excitement farewell bash CBB's Emma Willis reveals evicted housemates will HIJACK show during Wednesday's eviction

Sarah's fans went wild after the result was announced, with her Girls Aloud bandmate Nadine Coyle live tweeting the whole show.

Nadine has been one of the band who has been supporting Sarah throughout her time in the house.

16 Emma Willis confirmed Emma had romped to victory and said that none of the other contestants were even close to the number of votes she had received Credit: Rex Features

Sarah, who has long been rumoured to have fallen out with Cheryl, took a swipe at her former bandmate during the show and accused her of "meticulously" planning her secret pregnancy.

The 35-year-old singer branded Cheryl "savvy" in a candid chat with Amelia Lily, and suggested she is a control freak.

16 Sarah Harding spoke about Cheryl while chatting in the bathroom with Amelia Lily Credit: Channel 5

16 Sarah has admitted drifting apart from Cheryl over the years as everyone gets on with their own lives Credit: Splash News

16 Girls Aloud became the UK's top all-female group and ruled the charts Credit: Getty - Contributor

Celebrity Big Brother housemate Amelia kicked off the chat by saying of Cheryl: "She's quite private, isn't she?"

Sarah replied: "She tries to be.

"She just knows how to work it when she wants to.

"When she wants to be seen she is, and when she doesn’t, she makes sure she isn’t.

"Like with the whole baby thing, she just plans things meticulously.”

Amelia responded: “Clever lady.”

Sarah said: “She’s savvy, I’d give her that.”

The Sun on Sunday previously revealed in July how Cheryl had unfollowed Sarah on Twitter, sparking rumours of a feud.

16 This is the only photo that has been released of Cheryl and Liam's son Bear Credit: Instagram

Cheryl, 34, chose to return to the spotlight the same day Sarah entered the CBB house, posting a photo to Instagram showing her full body for the first time since giving birth.

She welcomed son Bear Grey Payne, whose dad is One Direction star Liam Payne, on March 22.

Her post on August 1, behind the scenes at a L'Oreal photoshoot, marked the first time she'd been pictured in six months, after deliberately keeping a low profile during pregnancy.

As well as keeping herself hidden from the cameras, the star has only released one image of her son - the Instagram snap posted on March 25 to announce his arrival.

16 Sarah held her hand up to her face to try and hide her tears Credit: Getty Images - Getty

16 She couldn't stop her tears from falling as she greeted Emma Credit: Getty Images - Getty

After leaving the house last night, Sarah admitted: “It's been a tough ride.”

She struggled to stop crying and bawled as Emma Willis told her she'd romped to victory, with none of her fellow finalists coming close in the final vote.

Emma handed her a packet of tissues as a teary Sarah thanked her fans at home for voting for her.

Once she'd composed herself, the 35-year-old opened up about what winning meant to her.

16 And it all seemed to be completely overwhelming Credit: Getty Images - Getty

16 Even as she posed for pictures, Sarah seemed completely taken aback by the result Credit: PA:Press Association

Sarah explained: “I wanted to show everyone at home that I'm just a normal girl.

“I've gone through the whole spectrum of emotions.”

16 Sarah thanked her fans but struggled to contain her tears Credit: Rex Features

16 Luckily Emma had provided a box of tissues for her and helped her to dry her tears before she did a victory lap of the stage Credit: Getty Images - Getty

“I didn't think about any of the boys [inside the house] like that when I went in there.”

When asked about her blossoming relationship with Chad, Sarah admitted: “He became my best friend.

“After everything we went through, I thought it didn't compare to what I had on the outside.

“I couldn't compare it, it was like we'd known each other for months and months, not a few weeks.

“Our feelings grew and I couldn't do anything about it and it was killing me.”

When the show ended, Sarah was reunited with Chad, who tenderly stroked her face as they waved at the crowds who'd watched the show live from the studios in North London.

Got a story? email digishowbiz@the-sun.co.uk or call us direct on 02077824220