HuffPost Celeb are turning back the clock and revisiting all of the big moments of 2012 in our Celeb Review Of The Year, and today it's time to remember what happened in October.

Action in celebville included the mother of all diva fights erupting as filming for 'American Idol' began, Rihanna fuelling speculation she had reunited with her abusive ex, a naked picture scandal for a squeaky clean star, and Girls Aloud admitting to the worst kept secret in pop history, plus much, much more besides. Click through our full review below...

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  • Filming for the new series of 'American Idol' got off with a serious bang when fireworks exploded between new judges Mariah Carey and Nicki Minaj. Cameras captured the moment the two came to blows following a contestant's audition, when Nicki threatened to shoot Mariah.

  • Chris Brown announced his split from girlfriend Karrueche Tran amid rumours he was getting back with Rihanna after they were spotted together on a string of 'dates'. Chris - who was convicted of assaulting RiRi in 2009 - later posted a video online, claiming he was 'in love with two people'.

  • Wherever Lindsay Lohan goes, drama is never far away and the latest incident for the star saw her involved in a fight with her mother Dina after a night out. In a leaked phone call to her father Michael, she could be heard claiming that her mother was on cocaine and attacking her. She then admitted she had lied about her mother after cops were called to Dina's house, hitting out at her dad for leaking the call.

  • Justin Bieber found himself at the centre of a naked picture scandal after his laptop was stolen backstage at a gig. After he tweeted that the laptop contained 'personal footage', a nude picture supposedly of the star leaked. However it was proven to be a fake when the personal in the photo had an 'innie' belly button, where as Justin has an 'outie'.

  • 'X Factor' contestant Jahmene Douglas revealed his tragic childhood when he told of how his father used to abuse him, his mother and his siblings. After telling of his 'living hell', the singer broke down in tears on the following week's 'X Factor' after his performance of Aretha Franklin's 'Say A Little Prayer'.

  • Cheryl Cole revealed that Kate Middleton had shocked friends at her hen do by dressing up as the Girls Aloud singer. K-Middy had donned the soldier-style outfit from Chezza's 'Fight For This Love' video, and even performed a foot-perfect dance routine.

  • 'X Factor' stars Lucy Spraggan and Rylan Clark found themselves chucked out of the contestants' hotel after a drunken night on the tiles. When leaked video footage showed the pair rolling about the town and we immediately wanted them to be our pals.

  • After three years in the making, Girls Aloud finally confirmed pop's worst kept secret ever - that they were reuniting to celebrate the band's 10th anniversary. Cheryl, Sarah, Nadine, Kimberley and Nicola told a packed press conference that they were set to release new single 'Something New' and a greatest hits collection, before heading out on tour in 2013.

  • Katie Price finally called it a day with fiance Leandro Penna. He then went on to tell all about his life with Katie, selling his story to various mags.

  • Following their split the previous month, Chantelle Houghton's war of words with Alex Reid continued when she tweeted a series of explosive revelations about her ex. She told Twitter followers of how Alex had turned their house into a sex dungeon, and that he had arranged to meet men for sex during their relationship. He went on to defend himself (on the pages of a magazine, obvs) insisting he had never cheated on Chantelle but had slept with men in the past.