17 celebrity couples you didn't realize were together

Graham says one thing that's made their love last is sharing a career.

"It's hard to explain to people when you have a fancy job like being an actor what is challenging about it," Graham told PEOPLE in November. "So we just kind of have that shorthand, a shared language, which is helpful."

Back in September Brody took to Reddit to answer fan questions. When someone asked what his favorite thing about Leighton was he replied, "Too many to count. She's the BEST."

These two are nearly insperable.

"We like each other," Mullally said in an NY Daily News interview. "We also have a two-week rule, where we don’t go more than two weeks without seeing each other. We’ve only broken it by a couple of days twice in 16 years."

The couple is expecting their first baby together as she announced in a political piece for Glamour last fall.

"Motherhood has been heavily on my mind because I am going to be a mother soon," she wrote. "I'm pregnant, with a daughter on the way. I think constantly about the world I am bringing her into."

In 2012, the SNL alum sat down for an interview with Vulture just days after the couple's wedding. It's no wonder the interviewer asked why they weren't on their honeymoon, but Killam simply replied that, "Every day with Cobie is a honeymoon!"

With one of the most private marriages in Hollywood, many wonder why they shy away from the spotlight.

Weisz set the record straight when she talked with MORE magazine. "He's just too famous. It would be a betrayal. You have to protect your marriage," the actress said. "When you're young, you tell your girlfriends everything. 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."

These lovebirds and parents of two have been together for more than three decades, so everyone's asking: What's their secret for staying together?

When the TODAY show asked her in 2015, she gave a very thoughtful answer. "Don't get divorced," she said. "It's a fascinating thing. I could write a book on marriage called 'Don't Leave.'"

These two aren't your average couple. With Sacha's racy roles, they've got more than a few wild memories they've shared.

"Once, Sacha came back from work while he was shooting 'Bruno' and he had red welts and blood all over his back, and his thumb was broken," Fisher told Square Mile Magazine. "It was the result of a scene with a real six-foot-four dominatrix who had tried to force him to have sex with her. When I asked him what had happened, he just said it was a 'workplace injury.'"

The pair doesn't have any offspring as of yet and according to Hendricks, it's not in the plan.

"It's just very normal for people to say, 'Well, when you guys have kids…' And then when I say, 'Actually I don’t think we're going to do that,' people will say, 'Oh, you say that now…'" Hendricks told Health. "It doesn’t bother me, though. And, you know, there’s a small chance I could change my mind."

Mulligan and Mumford are known for keeping their relationship behind closed doors. Luckily their friend Sienna Miller has seen enough to shed some light for their fans.

"They have chickens and a dog, and roasts and friends, jams by campfires. It's sort of idyllic," she told Vogue. "Marcus can headline Glastonbury and Carey can be nominated for however many Oscars, and then they come back to their farm, and they're in big woolly jumpers and funny hats, raising piglets."

With Silverman landing a recurring role as the office manager Betty's partner on "Masters of Sex" the two started to get a bit more time together. Even though it might not be the kind of quality time they want.

"We've only ever done two scenes together. So we did say last season, 'Can we please have a scene together?' So I gave her a gynecological exam, which was interesting," Sheen told PEOPLE.

They may be picture perfect with 1-year-old Otis, but they almost didn't work out. Wilde says Sudeikis ghosted her when they first met.

"When he got my number he didn't text me for a month," Wilde said. She even joked with friends asking, "You guys did Jason Sudeikis die? I don't have any texts from him."

When Keys made a statement by going makeup free to the 2016 MTV Video Music Awards, Swizz defended his wifey against any haters.

"Y'all gotta think about that. This is deep," he said in an Instagram video. "Somebody's sitting at home mad, because somebody didn't wear makeup on their face … not your face, but they didn't put makeup on their face, because they just didn't feel like wearing makeup."

They may not have kids, but they do have a very special someone in their lives: their dog Chumley.

"Michael and I have been together for going on 22 years," Preston told Us Weekly in a video. "We talk about our lives B.C. and A.C. — Before Chumley and After Chumley."

Huffman and Macy were nominated for awards at the 2016 Emmy's.

"In the morning of the nominations, when we were both nominated, he told me 'You're not going to win.' I told him, 'You're not going to win.' Then we gave each other a kiss!" Huffman told an ABC correspondent on the red carpet.

Despite being married for over 7 years now, Danes say she's still learning.

"Marriage is wonderful. It’s challenging, and … it just keeps getting deeper. I keep learning more things about him and myself, and that’s not always comfortable," Danes told THE EDIT. "But I have this incredible security, and it’s a huge asset to have a partnership with someone you trust and admire – and want to make out with."

The "Footloose" star gave a heartwarming shout out to his long time partner back in 2015 as they rang in their 27th year together.

"Celebrating 9,855 days of marriage to @kyrasedgwick," he wrote. He followed up that post with a throwback for the ages adding, "Did I mention it's 1,404 weeks sine we tied the knot? #LikeFineWine."

They have a 22 year age gap, but to them it's no biggie.

"That’s a non-issue," Flockhart told. "It's like, we met and, by the way, there's a big age difference. And the truth is, I sometimes feel very much older than Harrison."

It probably helps that their son Liam, who Flockhart adopted just before she met Ford, is 16 and helping to keep them young at heart.