One of Hollywood's most beloved and rock-solid couples has to be Nicole Kidman and Keith Urban. The two have been together for 13 years this year and are still so unbelievably in love with each other. Their relationship hasn't been perfect, but then again the best ones never are. It has been a journey full of love and discovery.

While there's not much - if any - negativity surrounding the two, there are some things that many wouldn't guess about their relationship. It's a special one to say the least, and we're happy to share what we know about this king and queen of country music and drama.

Here are 20 things that might be surprising about these two! If nothing else, they make us believe that true love really does exist out there.

20 While Keith Is Obviously Musical, Kidman Isn't Too Shabby

The two have been scoped on more than one occasion singing with each other, including car karaoke! Keith jokes about his wife, saying that if she heckles him, he makes her sing with him...as he did at an event they attended for Spotify.

19 Kidman Made A Special Country Music CD To Play During Labor

While the CD didn't include any of her singing, it did include some of Keith's music. It's the sweetest thing to sing to your child, and playing songs for a baby, which have been chosen with love, as soon as the infant enters the world, is truly something else.

18 They Didn't Begin Dating Immediately

Funnily enough, the couple didn't begin dating immediately. It took Keith four months to ask Nicole out, but they did know each other prior to that. While she claims there were no intense sparks, it's clear that there was still something there. Enough to build a romance on, anyway!

17 But They Did Meet At A Gala For Aussies

Although Nicole Kidman was born in Hawaii, she's still Australian and so is Keith. This is something they both have in common and care deeply about, and they even have a home in Sydney. They met at a G'Day LA event and began dating several months later.

16 They Broke Tradition With Their Wedding Gifts

Typically at weddings, the bride and groom's family and friends will offer gifts and/or cards when they attend the ceremony. In stark contrast to tradition, both Nicole and Keith requested that their guests donate money to the Sydney Children's Hospital rather than using it for gifts.

15 Their First Meeting Wasn't 'Earth Shaking' According to Kidman

Although they joke about it, Nicole claims that Keith definitely wasn't in love right off the bat and that it wasn't 'love at first sight'. Obviously, there was something there, and although it wasn't 'earth-shaking', it would definitely prove to be a love that would transcend the years.

14 Kidman Didn't Mind Moving Fast And Getting Married Early

Nicole told Us Weekly in an interview that she doesn't mind moving quickly as far as marriage goes. For her, it's better to marry someone and get to know them while married, rather than taking the long road to doing so. She knew she wanted to marry Keith after about a month!

13 Urban Carried A Secret That Initially Put A Strain On Their Marriage

Keith had a substance issue that definitely put a strain on their relationship. While he checked himself into rehab immediately after they were married, he claims Nicole was a huge driving force behind that. While it was a tremendous difficulty for her to overcome, he didn't want to lose everything.

12 They Were Admittedly Both Very Lonely Individuals

The two have claimed that they believed they were both very lonely prior to meeting each other. It's interesting how, despite being surrounded by so many fans and the big lights of Hollywood, you can still feel so alone. It seems these two really found their soul mates in each other.

11 The Two Feel As Though There Was A Powerful, Driving Force To Their Love

While some believe that love is simply the recognition of something we like in another person, others believe the aspect of fate has a big role to play in it. Both Nicole and Keith believe that there was a driving force behind their love and that they didn't just end up together by accident.