Hollywood's most private couples

The less we're told, the more we want to know! That's why we're transfixed by celebrity couples who keep their private lives, well, private. Enrique Iglesias, who turns 42 on May 8, 2017, keeps his relationship with tennis ace Anna Kournikova pretty intimate, which is why we're starting with these two. Enrique and Anna met on the set of the singer's "Escape" music video in 2001. Although they've been together for quite some time with some on-and-off bumps in the road, they still rarely — if ever — speak about each other. But in 2014, Enrique made an exception and told Britain's Express that Anna is "the coolest girl in the world." Read on for more about the stars with the most secretive love lives!

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Ryan Gosling and Eva Mendes have been together for nearly six years and have always kept their relationship pretty quiet — but that doesn't mean they've never acknowledged it. The beautiful couple welcomed daughters Esmeralda in 2014 and Amada in 2016. While promoting "The Nice Guys" in May 2016, Ryan described how happy he was to come home to his three girls every day. "It's heaven. It's like walking through a field of flowers every day. I live with angels," he said. He also told GQ in January 2017, "Eva's the dream mother, and they're dream babies, and it's like a dream that I'm having right now. I'm dreaming it all." Seems like this family is on Cloud Nine!

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It's rare to hear much about "Scandal" actress Kerry Washington and her husband, former NFL player Nnamdi Asomugha. Kerry prides herself on being incredibly quiet about her relationship, although she acknowledges it's something of a "double-edged sword" staying so mum about her love life. "If I don't talk about my personal life, it means I don't talk about my personal life," she said. "That means not only did I not tell you when I was getting married, it also means if somebody has rumors about what's going on in my marriage, I don't refute them, because I don't talk about my personal life," Kerry said during "The New Rules of Social Stardom" chat at the SXSW Festival. The super low-profile couple, who don't do red carpets together, share daughter Isabelle, who was born in 2014, and son Caleb, who arrived in 2016.

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Jeffrey Dean Morgan and Hilarie Burton have kept the details of their relationship pretty private — but of course, we have the scoop. The actors were set up via a friend in 2009 and welcomed son Augustus in early 2010. They reportedly live on a farm in upstate New York and own a candy store with Paul Rudd called Samuel's Sweet Shop. The awww factor is real.

"Suffragette" actress Carey Mulligan and Mumford and Sons frontman Marcus Mumford went to the same Christian youth camp as kids and were childhood pen pals. They married on a farm in London in 2012. Carey rarely speaks of their relationship and told Vogue in 2015, "Marcus is the only thing that's mine that I can keep totally away, so I try to." We get that!

Did you know superstar Cate Blanchett is married with four kids? The "Thor: Ragnarok" star wed Australian playwright and director Andrew Upton back in 1997! The two, who are co-artistic directors of the Sydney Theatre Company and also joint owners of production company Dirty Films, share three biological sons and one adopted daughter. Cate told E! News in 2015 of their relationship, "It's been a great creative partnership with my husband and also a great love affair. Working together, running a creative company in Australia. It's been fantastic."

Talk about a low-key couple! Joseph Gordon-Levitt and wife Tasha McCauley — who has a degree in robotics — are hardly ever photographed out together, so when they hit Seth Rogen and wife Lauren Miller's Hilarity For Charity event in October 2016, they really did it up — in red "blood" splattered costume! The private couple tied the knot in an intimate ceremony in 2014. They share a young son, though have never revealed his name publicly. Joseph told Playboy in 2015, "I'm reluctant to talk about being married because I'm married to a woman who doesn't like strangers being privy to her life and relationships." In May 2017, Tasha was photographed sporting a baby bump while walking arm-in-arm with her husband, though they have yet to actually confirm her second pregnancy. You don't get much more private than that!

Actress Natalie Portman and ballet choreographer hubby Benjamin Millepied met on the set of "Black Swan" in 2009 and married in 2012. The private couple do make appearances here and there, but always play it pretty cool. They welcomed a son, Aleph, in 2011 and a daughter, Amalia, in February 2017.

"Suicide Squad" actress Margot Robbie met now-husband Tom Ackerley, an assistant film director, on set while working on the war drama "Suite Francaise." The couple quietly married in December 2016. Margot described her husband as "the best-looking guy in London" to Vogue in May 2016, but they don't even walk red carpets together!

Julia Roberts and cameraman-cinematographer Danny Moder are still going strong, even though their relationship has been plagued by breakup rumors for years. The very private couple met on the set of her film "The Mexican" in 2000, married in 2002 and now have three children. In 2015, Julia shared her secret for a successful marriage with "Extra," explaining that it's simple: kissing.

Fashion designer and former child star Mary-Kate Olsen married banker Olivier Sarkozy in November 2015 after three years of dating. Mary-Kate is not only private about her relationship, but also about her own day-to-day life. She did speak out about her work/life balance and their relationship — sort of — to The Edit in March 2017. "I have a husband, two step kids and a life; I have to go home and cook dinner. I ride horses on the weekends. You find the thing that helps you relax, and if you don't have it, you have to look for it. Or you get burned out, and then you're not productive," she explained.

It's hard for this couple to keep their relationship under wraps, considering their A-list rank and luxurious lifestyle. Suave Academy Award-winning actor George Clooney and distinguished human rights lawyer Amal Clooney made it official with a wedding in Italy in 2014 and in February 2017, it was revealed that Amal was pregnant with twins! George told Esquire in April 2016, "I've never been happier in a relationship by any stretch of the imagination. At 52, I found the love of my life and I'm really happy."

Rachel Weisz , who married "James Bond" actor Daniel Craig in 2011, keeps their marriage on lock. Rachel told More magazine in 2015, "One of the great pleasures of not being an adolescent is that you don't have to share everything. When you're married, that door closes. The audience goes, and you're in your own life."

Rachel Bilson and Hayden Christensen met on the set of "Jumper" in 2007 and got engaged in 2008. The adorable duo briefly split in 2010 but reconciled and welcomed daughter Briar Rose in 2014. During a rare interview with E! about his personal life in 2015, Hayden shared a tidbit about their bundle of joy: "I have this little angel in my life now and Rachel and I are so thrilled. We don't sleep as much as we used to, but it's all so worth it."

They're a match made in early-aughts TV heaven! Adam Brody and Leighton Meester tied the knot in February 2014 in a super-intimate ceremony in Northern California. They share a daughter, Arlo, who arrived in 2015. In a Reddit AMA interview in 2016, Adam simply called Leighton, "the best." Aw.