Everyone knows that couple.
You know, the couple that no one ever thought would get together, or date, let alone get married.
Celebrities have also raised some eyebrows with unexpected match ups.
Click through the slideshow below to see 10 of the oddest couples. Which still-married celebrity couple do you think is the most unlikely match? Let us know in the comments.
Antonio Banderas and Melanie Griffith
Antonio Banderas, 51, and Melanie Griffith, 54, have been married for 15 years. They <a href="http://voices.yahoo.com/young-hollywood-marriages-still-going-strong-11104392.html?cat=41" target="_hplink">met in the 90s</a> while married to other people. They've had a tough go at their marriage, dealing with <a href="http://www.huffingtonpost.co.uk/2011/09/22/melanie-griffith-antonio-banderas-addiction_n_975757.html" target="_hplink">Griffith's drug and alcohol addictions,</a> and Griffith was recently spotted <a href="http://perezhilton.com/2012-07-11-melanie-griffith-not-wearing-wedding-ring" target="_hplink">sans wedding band</a>, sparking split rumors.
Michael Douglas and Catherine Zeta-Jones
Catherine Zeta-Jones, 42, and Michael Douglas, 67, have been happily married for 12 years, despite their 25-year age difference. They met at the American Film Festival in France in 1998 while Douglas was <a href="http://www.people.com/people/archive/article/0,,20129448,00.html" target="_hplink">still finalizing his divorce</a> from ex-wife Diandra Douglas.
Celine Dion and Rene Angelil
Celine Dion, 44, and manager husband Rene Angelil, 70, have been <a href="http://www.usmagazine.com/entertainment/news/find-out-celine-dions-secret-to-a-happy-marriage-201046" target="_hplink">married for 18 years</a>. They have three children together, including a set of twins. They <a href="http://www.biography.com/people/celine-dion-9542132" target="_hplink">met when Dion was 12</a> after she sent a recording of herself singing to Angelil.
Courtney Stodden and Doug Hutchison
Courtney Stodden married TV actor Doug Hutchison, 51, when <a href="http://today.msnbc.msn.com/id/43472366" target="_hplink">she was just 16 years old.</a> They met after Stodden, now 17, became <a href="http://abcnews.go.com/Entertainment/doug-hutchison-courtney-stodden-controversial-marriage-exclusive/story?id=14073130" target="_hplink">interested in an acting class</a> Hutchison was offering.
Emily Blunt and John Krasinski
Emily Blunt, 29, and Jon Krasinski, 32, <a href="http://www.usmagazine.com/celebrity-news/pictures/emily-blunt-and-john-krasinskis-road-to-romance-2012232/21036" target="_hplink">married in 2011</a>. The pair met in 2008, and Krasinki says he "just knew" he was going to fall for Blunt.
Harrison Ford and Callista Flockhart
Harrison Ford, who just turned 70, married Calista Flockhart, 47, in 2010 while Ford was filming "Cowboys and Aliens" in Mexico. They <a href="http://abcnews.go.com/Entertainment/harrison-ford-calista-flockhart-married/story?id=10941072" target="_hplink">met at the 2002 Golden Globes</a> and began dating soon after.
Ice T and Coco
Ice T, 54, and Nicole "Coco" Austin, 33, have been married for 11 years. They tied the knot after knowing each other for just <a href="http://www.dailymail.co.uk/tvshowbiz/article-2122930/Ice-T-recalls-moment-set-eyes-voluptuous-Coco-couple-open-exclusive-interview.html" target="_hplink">two months </a>. They met while the rapper was <a href="http://theurbandaily.com/1292175/ice-t-reveals-how-he-met-coco-in-ice-loves-coco-teaser-video/" target="_hplink">filming a music video.</a>
John Travolta and Kelly Preston
John Travolta, 58, and wife Kelly Preston, 49, <a href="http://www.biography.com/people/john-travolta-9509927" target="_hplink">married in 1991</a> after they <a href="http://usa.onlinenigeria.com/news/breaking-news/55727-how-did-john-travolta-meet-kelly-preston-postchronicle-com.html" target="_hplink">met while filming "The Experts" in 1987</a>. The couple welcomed their third child in 2010, when Preston was 47 years old.
Sam Taylor-Wood and Aaron Johnson
<a href="http://www.huffingtonpost.com/2012/06/22/sam-taylor-wood-aaron-johnson-married-wedding_n_1619360.html" target="_hplink">Sam Taylor-Wood, 45, married Aaron Johnson, 22</a>, on June 22, 2012. Taylor-Wood, a filmmaker and Johnson, an actor, have two young children together. The pair met on the set of the <a href="http://www.usmagazine.com/celebrity-news/news/director-sam-taylor-wood-45-marries-actor-aaron-johnson-22-2012226" target="_hplink">2009 film "Nowhere Boy"</a> when Johnson was just 19 years old.
Woody Allen and Soon-Yi Previn
Woody Allen, 76, <a href="http://www.cnn.com/SHOWBIZ/9712/24/woody.weds/" target="_hplink">married Soon-Yi Previn</a>, 41, in 1997. The pair met while Allen was still in a relationship with actress Mia Farrow; Previn is Farrow's adopted daughter. While Allen never adopted Previn, the couple's relationship <a href="http://entertainment.blogs.foxnews.com/2010/05/17/woody-allen-president-obama-dictator/" target="_hplink">has been called</a> "grossly inappropriate" and akin to the relationship between a step-father and step-daughter. <em>Correction: We originally reported Woody Allen's age as 79, not 76. This has since been updated. We regret the error.</em>