This year saw some of the most shocking and unexpected celebrity splits and for fans who need a quick refresher, here's a rundown of former Hollywood A-list couples who might be spending the holidays single.

Gigi Hadid and Joe Jonas

After 5 months of seeing each other, one of Hollywood's hottest pair-ups, dubbed "GI Joe," broke it off citing busy schedules.

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Kaley Cuoco and Ryan Sweeting

The two-year relationship of Big Bang Theory star, Kaley Cuoco and Ryan Sweeting, who got engaged back in 2013 after a whirlwind romance, ended after the pair mutually decided to divorce.

Emma Roberts and Evan Peters

Scream Queen Emma Roberts and Quicksilver Evan Peters were engaged for over a year before they decided to call it quits this year. The couple, however, was recently spotted out for dinner in LA, prompting fans to hope for a reconciliation.

Amanda Seyfried and Justin Long

Another two year relationship bites the dust. The pair has kept mum about the reason for their split but it's been a while since they were spotted together.

Amy Poehler and Nick Kroll

Arguably one of America's most beloved couples, the comedians announced their breakup back in September after dating for two years and cited busy schedules as the reason for their split.

Kourtney Kardashian and Scott Disick

After 9 years and 3 children together, it was almost as if the Keeping Up With the Kardashian's star wasn't going to let anything break up their relationship. But with Scott getting photographed with an old girlfriend in the South of France, Kourtney finally jumped the gun and ended it.

Charlize Theron and Sean Penn

For a couple of years, these Academy Award Hollywood powerhouses had nothing but praise for each other, noting that their relationship was 'effortless.' Nevertheless, after walking the red carpet together at the Cannes Film Festival, the couple broke off their engagement mid year.

Ben Affleck and Jennifer Garner

No one could have seen a breakup coming for one of the longest running Hollywood marriages. But sadly, Ben and Jen announced their plans to divorce in June, a day after the couple celebrated their decade-long marriage.

Gwen Stefani and Gavin Rossdale

The King and Queen of Rock n' Roll broke a lot of Gen Xers hears when they announced their intent to break up their 13 year marriage in August, citing irreconcilable differences.

Megan Fox and Brian Austin Green

Despite being being together for 10 years, the former 90210 star and Transformers actress have announced their amicable split with intent to co-parent their two kids as best as they can.

Jon Hamm and Jennifer Westfeldt

Another longstanding couple bit the dust in 2015 as the Mad Men hottie and Friends With Kids star decided to separate after 18 years together.

Emma Stone and Andrew Garfield

Back in April, rumors circulated about the break up of two of Hollywood's most celebrated A-list couples. But a month later, the pair were seen together in LA, which put those rumors to rest. Unfortunately, the couple apparently called it quits for real in October.

Bradley Cooper and Suki Waterhouse

After two years together, the pair ended things in March. Cooper is now dating Russian model, Irina Shayk.

Louis Tomlinson and Eleanor Calder

One of the most celebrated relationships in the music industry was with One Direction's Tomlinson and his longtime girlfriend, Eleanor, which ended because of distance and schedule.

Zayn Malik and Perrie Edwards

Another Directioner's relationship bites the dust as Malik, who was engaged to Edwards of Little Mix, ended their relationship allegedly via text.

Liam Payne and Sophia Smith

A third member of One Direction gets dumped this year-with reports saying that the popstar was completely blindsided when his longtime girlfriend  broke it off in October.

Victoria Justice and Pierson Fode

The newest couple to join this year's list are the co-stars of Naomi and Ely's No Kiss List who ended their relationship after two years of dating.

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