Caroline Flack and Harry Styles(01 of22)
Open Image ModalIt was the most controversial relationship of 2011, but Harry Styles and Caroline Flack only confirmed their romance when it ended in January 2012. Harry tweeted: "Please know I didn't 'dump' caroline. This was a mutual decision. She is one of the kindest, sweetest people I know. Please respect that." (credit:PA)
Heidi Klum and Seal(02 of22)
Open Image ModalAn odd match but a lovely couple, so we were really sad to see Heidi Klum and Seal split up in January 2012, after seven years of marriage. The couple went on to have a public war of words when Hedi went public with her relationship with her body guard, with Seal saying: "I would have thought Heidi would have shown a little bit more class before deciding to fornicate with the help." Ouch. (credit:AP)
Tuilsa and Fazer(03 of22)
Open Image ModalThey had spent ages avoiding questions about their relationship but not long after going public with their romance, N-Dubz bandmates Tulisa and Fazer split in January 2012. The 'X Factor' judge then went on to briefly date 'Skins' star Jack O'Connell. (credit:WENN)
Sarah Harding and Theo DeVries(04 of22)
Open Image ModalGirls Aloud's Sarah Harding finally looked happy after coming out of rehab at the start of 2012, finding love with Theo DeVries. However, it was short lived, as they split in January following a shocking drunken brawl, which left the singer covered in bruises. (credit:WENN)
Denise Welch and Tim Healy(05 of22)
Open Image Modal'Loose Woman' Denise Welch announced she had split from husband of 24 years Tim Healy live on the lunchtime talk show in February 2012, following rumours she'd had an affair. However, she revealed she and Tim decided to split at the end of 2011 and had kept the news a secret. She is now engaged to toyboy Lincoln Townley. (credit:WENN)
Ronan and Yvonne Keating(06 of22)
Open Image ModalAfter 14 years of marriage, Ronan and Yvonne Keating announced their split in April 2012, having kept it secret since late 2011.They failed to get over Ronan's affair with a dancer in 2010, and now the Boyzone singer is dating an Australian TV producer. (credit:WENN)
Dannii Minogue and Kris Smith(07 of22)
Open Image ModalDannii Minogue seemed to have it all - a hunky man and gorgeous little boy Ethan. But the former 'X Factor' judge's perfect life was shattered when she split from model Kris in April 2012. (credit:PA)
Mollie King and David Gandy(08 of22)
Open Image ModalThe Saturdays singer Mollie King split from model boyfriend David Gandy in April 2012, and went on to be briefly linked to Prince Harry. Meanwhile, David spoke out against his ex and claimed his "perfectionism" was the reason the relationship ended. Ouch. (credit:WENN)
Lady Gaga and Taylor Kinney(09 of22)
Open Image ModalPreviously notoriously private Lady Gaga split with 'True Blood' star Taylor Kinney in May 2012, after meeting on the set of her 'You & I' video in 2011. However, within weeks they were back in each others arms. Aww. (credit:Lady Gaga/Twitter)
Myleene Klass and Graham Quinn(10 of22)
Open Image ModalMyleene Klass was left heartbroken when tour manager husband Graham Quinn suddenly walked out on her and their two daughters in June 2012. (credit:WENN)
Johnny Depp and Vanessa Paradis(11 of22)
Open Image ModalTogether 14 years but never married, Johnny and Vanessa split in June 2012. They had three kids together. (credit:AP)
Katy Perry and Robert Ackroyd(12 of22)
Open Image ModalKaty Perry looked to have finally moved on from Russell Brand when she went public with Florence and the Machine guitarist Robert Ackroyd at Coachella Festival in June 2012. After breaking-up and getting back together, they ended it for good the following month and she soon begun seeing old flame John Mayer. (credit:WENN)
Tom Cruise and Katie Holmes(13 of22)
Open Image ModalOne of the most high profile marriages in Hollywood came to an abrupt end in July 2012 as acting duo Tom Cruise and Katie Holmes split after five years together. (credit:Alamy)
Robert Pattinson and Kristen Stewart(14 of22)
Open Image ModalKristen Stewart was caught out in July 2012 when pictures were published of her cheating on Robert Pattinson. The couple split when news of her affair with 'Snow White And The Huntsman' director Rupert Sanders broke but after a couple of months apart they went public with a reunion in October. (credit:AP)
Max George and Michelle Keegan(15 of22)
Open Image ModalMax and Michelle prompted speculation they were about to split back in April 2012, when they announced their engagement was off but they were staying together as a couple. Sure enough, a few months later in July, the Coronation Street/The Wanted union came to complete end. (credit:WENN)
Geri Halliwell and Russell Brand(16 of22)
Open Image ModalThey were the surprise celeb couple of the year, but it was all over for Geri Halliwell and Russell Brand nearly as soon as it had begun. After cosying up after the Olympics Closing Ceremony in August 2012, the pair begun seeing each other, but it was soon over when Russ was pictured in the arms of another woman. Awks. (credit:WENN)
Russell Crowe and Danielle Spencer(17 of22)
Open Image ModalRussell and Danielle had been together a long time by celebrity standards - nine years - but the two announced their divorce in October 2012, which could see her take $20m from the Australian actor. (credit:AP)
Alex Reid and Chantelle Houghton(18 of22)
Open Image ModalAren't you shocked it never worked out? Famous-for-being-famous Chantelle and famous-for-being-married-to-Jordan-and-periodically-dressing-as-a-lady Alex's relationship ended nearly as quickly as it started when they split in September 2012. The couple confirmed their split shortly after daughter Dolly's birth when Alex was arrested trying to force his way into their home. They have played out their split in various magazines since. (credit:PA)
Liam Payne and Danielle Peazer(19 of22)
Open Image ModalYoung love, eh? Liam Payne split from Danielle Peazer in September 2012 having been with her for two years. The One Direction star promptly snipped off all his hair amid rumours he'd started dating Leona Lewis, although neither have confirmed or denied the romance. (credit:WENN)
Gemma Collins and James 'Arg' Argent(20 of22)
Open Image ModalFollowing his split from Lydia Bright, James Argent begun dating fellow 'TOWIE' star Gemma Collins. The pair were accused of faking their relationship for storylines on the show, but the romance didn't last long, as they called time on it in October 2012, amid rumours they had both cheated.
Chris Brown and Karreuche Tran (21 of22)
Open Image ModalChris Brown announced he had split from girlfriend Karreuche Tran in October 2012, amid increasing sightings of him with ex-girlfriend Rihanna. The singer blamed his 'friendship' with his ex as the reason for the split and later claimed he was 'in love with two people', prompting speculation Chris and RiRi had reunited. (credit:Splash)
Katie Price and Leandro Penna(22 of22)
Open Image ModalAfter much speculation, Katie Price finally admitted she'd gotten back with former Argentinian boyfriend Leandro Penna in April 2012 and announced their engagement just a few weeks later. Sadly they couldn't make their reunion work and split (possibly for good this time) in October. (credit:PA)