Celebrity relationships come and go so quickly it's hard to keep up who's who in the world of Hollywood couples. Over the years, there have been some unlikely hookups that were destined for failure but, if you blinked, you may have missed the tabloid headlines that told of their fleeting relationships and equally speedy breakups.
To refresh your memory, or totally shock you, we've compiled a list of 20 celebrity couple that you might have forgotten about or — let's be honest here — never knew about because you weren't in the supermarket checkout line the day their brief love story was featured on the front of a gossip rag.
And don't think that these unexpected pairings are just a thing of the past — the newest odd couple hitting the headlines is Ryan Seacrest and Victoria's Secret Angel, Adriana Lima.
Instagram
The 35-year-old model and 41-year-old TV host have yet to confirm that
they are in a relationship
, but they were spotted together at the Rio Olympics and, most recently, enjoying dinner in New York City. How long will they last? Don't blink!
Madonna and Dennis Rodman
Madonna and Dennis Rodman
ABCNews.go
Music superstar Madonna supposedly dated former NBA player Dennis Rodman in the early 90s. Of course, there were some oddball rumors about the couple including Madonna's desire to have Rodman's baby. Apparently, they split before her dream of having a love-child with Dennis came true.
Marlee Matlin and John Stamos
Marlee Matlin and John Stamos
StarzLife.com
John and Marlee were in a relationship back in 1989, but it's not clear whether it was just a friendship or something more romantic. Decades later they are still friends, at least from what we can tell from their Twitter accounts.
Whoopi Goldberg and Ted Danson
Whoopi Goldberg and Ted Danson
LoveBirdsBlog.com
The early 90s spawned some unlikely celebrity couples including Whoopi and Ted. Apparently, Danson was completely smitten with Goldberg when they filmed Made in America and it was said to be the main reason he split with his wife, Casey, after 16 years of marriage.
Diane Keaton and Al Pacino
Diane Keaton and Al Pacino
Tumblr
Diane Keaton and Al Pacino had a good thing going back in the 80s, but she wanted more than he could give. Keaton wanted to get married and that wasn't at the top of Pacino's to-do list. She tells People magazine that although it didn't work out, she was "mad for him" and worked hard at their relationship.
Mila Kunis and Macaulay Culkin
Mila Kunis and Macaulay Culkin
Daily Mail UK
Mila and Macaulay were in a relationship from 2002 to 2010 and there were rumors that they planned to get married. After what
Page Six
calls an "amicable" split, they stayed close friends. Two years later, Mila started dating That '70s Show star Ashton Kutcher. They married in July 2015, have a daughter Wyatt Isabelle (October 2015), and announced in June that they are expecting their second child.
Oprah Winfrey and Roger Ebert
Oprah and Roger Ebert
MyThirtySpot
Long before Oprah became a household name she went on two dates with famous film critic Roger Ebert. Although their dates didn't lead to a long-term relationship,
Ebert claims
that during the time he spent with the media mogul, he persuaded her to "become the most successful and famous woman in the world."
Marilyn Manson and Evan Rachel Wood
Marilyn Manson and Evan Rachel Wood
John Shearer via MTV
Actress Evan Rachel Wood was 19 when she started dating a then 36-year-old Marilyn Manson in 2006. They got engaged in 2010 but Manson told
ET
said they later broke up because "they weren't right for each other." Shocker!
Chelsea Handler and 50 Cent
Chelsea Handler and 50 Cent
menzmag.com
According to
MTV
, Chelsea Handler and 50 Cent started dating in 2009, but apparently, their relationship wasn't all that serious. Handler states that they dated "very casually."
Brooke Shields and Andre Agassi
Brooke Shields and Andre Agassi
LA Times
Tennis star Andre Agassi and actress Brooke Shields were one of the most talked about celebrity couples back in the '90s but their relationship didn't end well. They dated for six years, married in 1999 and split two years later.
Ashley Olsen and Lance Armstrong
Ashley Olsen and Lance Armstrong
Pop Sugar
Back in 2007, former professional road racing cyclist Lance Armstrong dated Ashley Olsen, the former child actress who shared the role of Michelle Tanner with her twin sister, Mary-Kate on the popular 80s TV series,
Full House
. Ashley was just 21 when she dated the then 36-year-old Armstrong but there are rumors that
his friends
were afraid their relationship would ruin his image, so they split. He then ruined his image on his own when a
doping investigation
stripped him of his seven Tour de France titles.
Kim Kardashian and Nick Lachey
Kim Kardashian and Nick Lachey
Jolt24
Nick Lachey and Kim Kardashian dated briefly in 2006 — really? Apparently, it's true but Nick claimed after their breakup that Kim "used him" to get famous. Looks like it worked out for Kim. The star of
Keeping Up with the Kardashians,
Kim has 47.9 million followers on Twitter — Nick has 313K.
Sandra Bullock and Ryan Gosling
Sandra Bullock and Ryan Gosling
Huffington Post
Sandra and Ryan dated from 2002 to 2003 and then moved on to date his
The Notebook
co-star, Rachel McAdams. Gosling gave kudos to both of this ex-girlfriends, telling
The Times
that Bullock and McAdams were "two of the greatest girlfriend of all time."
Winona Ryder and Jimmy Fallon
Winona Ryder and Jimmy Fallon
E Online
Rumor has it that actress Winona Ryder and late-night talk show host Jimmy Fallon dated back in 2002, but Ryder tells
W magazine
that he wasn't her boyfriend — they were "just great friends."
Paris Hilton and Jared Leto
Paris Hilton and Jared Leto
Just Jared
Paris and Jared were never in a serious relationship, but after they were spotted kissing at the 2008 Sundance Film Festival, the rumors started flying.
Page Six
reported that they had been together before festival and although Paris thought Jared was "sexy and fun," their hookups didn't turn into a long-term romance.
Jessica Simpson and
John Mayer
Jessica Simpson and John Mayer
Kevin Mazur via MTV
John Mayer told Playboy that his
relationship with Jessica Simpson
was like "sexual napalm," but apparently even red hot sex wasn't enough to keep this couple together. They started dating in 2006 and called it quits one year later.
Carmen Electra and Simon Cowell
Carmen Electra and Simon Cowell
Ray Mickshaw Fox Television Network
Carmen and Simon never officially dated but they did make out during a party, something that tipped the media off and created a whole 'lotta gossip in the tabloid. Back in 2014, Electra told the
Huffington Post
that they never dated and Simon wasn't her man but didn't deny kissing him.
Rihanna and Shia Labeouf
Rihanna and Shia Labeouf
Celebuzz
Does one date mean you're in a relationship? No, but knowing that Rihanna and Shia went out on a date back in 2007 is something that may be news to you. LaBeouf tells Playboy that it ended after one date because "the spark wasn't there."
Lara Flynn Boyle and Jack Nicholson
Lara Flynn Boyle and Jack Nicholson
News.com/au
Jack and Lara had a thing for seven years, but they didn't walk off into the Hollywood sunset and live happily ever after. They started dating in 1999, but their relationship was off and on until they finally split in 2006.
Sheryl Crow and Owen Wilson
Sheryl Crow and Owen Wilson
Closer Weekly
Singer Sheryl Crow was in a relationship with actor Owen Wilson back in the early 2000s, but it lasted less than two years. However, she has nothing but good things to say about her ex, telling
USA Today
that Owen is "talented, and a great, great person."
Demi Moore and Emilio Estevez
Demi Moore and Emilio Estevez
ABCNews.go
Emilio Estevez and Demi Moore starred in the '80s movie St. Elmo's Fire and started dating in 1985. were romantically entangled from 1985 - 1987. After starring in 1985's "St. Elmo's Fire," the pair became engaged but never made it to the church.