Proud parents Angelina Jolie and Brad Pitt are getting ready to celebrate something huge for two of their children. Today, twins Knox and Vivienne are celebrating their 10th birthday, and frankly, it's jaw-dropping they're already hitting this huge milestone. While Jolie and Pitt have chosen to keep their kids somewhat sheltered from the world (none of the kids are on social media, for example), we have been getting more glimpses of them as they come into their own over the years.
But still, all of this relative secrecy about the lives Knox, Vivienne and their siblings has us wondering what we actually do know about them. So, why not investigate Knox and Vivienne specifically (it's their birthday after all) and see what fun facts we find?
1. They're Cancers
Born on July 12, 2008, these Generation Z twins are also Cancers, which means they're likely both very sensitive, giving people who love to be close to their siblings and parents.
2. They're the youngest kids in a big family
Knox and Vivienne are the youngest of six children. Their siblings, from youngest to oldest, are: Shiloh, 12, Zahara, 13, Pax, 14, and Maddox, 16.
3. Their names have special meaning
Vivienne's middle name, Marcheline, was her maternal grandmother's first name. Marcheline Bertrand died just one year before Vivienne and Knox were born.
Knox, on the other hand, got his first name from Pitt's paternal grandfather, Hal Knox Hillhouse, and his middle name, Leon, is the name of Jolie's great-grandfather.
4. They've been homeschooled for most of their lives
Jolie and Pitt have chosen to homeschool their children, and nowadays, it's been reported that Jolie is mostly in charge of their education. People magazine reported that the children are taking the basic classes (reading, math, science) but are also learning foreign languages and getting in plenty of physical activity with soccer, self-defense classes, skateboarding and so forth.
5. Knox & Vivienne have already racked up acting credits
They're only 10, but Knox and Vivienne have already got some major credits on their résumés. In 2016, Knox voiced the character of Ku Ku in Kung Fu Panda 3. Vivienne got her first acting gig even earlier with 2014's Maleficent in which she played the younger version of star Elle Fanning's character, Aurora.
While speaking specifically about Vivienne's Maleficent appearance in an interview, Jolie revealed the position she and Pitt took about their children pursuing acting: "We think it's fun for our kids to have cameos and join us on set, but not to be actors. That's not the goal for Brad and me at all. I think we would both prefer that they didn't become actors."
6. Knox is older than Vivienne by one minute
When their births were announced in 2008, People magazine reported that Knox was born at 6:27 p.m. local time and Vivienne, apparently not cool with waiting, followed quickly thereafter at approximately 6:28 p.m.
7. Knox is just like us: He does chores
Knox has been spotted out and about lately living life as regularly as possible. This includes accompanying older sister Zahara while walking their dog.
8. Their passports probably have more stamps than yours
9. Vivienne prefers gender-neutral clothing
Recent red carpet photos of Jolie and her children show that, like her older sibling, Shiloh, Vivienne is open to wearing gender-neutral clothing, like a tan linen two-piece suit back in September 2017.
10. They've always had fairly low-key birthdays
It may be a symptom of having famous parents or it could be something that they are inclined to do, but no matter the reason, Knox and Vivienne have kept it quiet for their birthday in years past. Case in point: For their eighth birthday in 2016, the twins reportedly went out for birthday pancakes in West Hollywood.
So, how will the twins be celebrating this year? That remains to be seen, but we're sure that whatever they choose to do, they'll be doing it in style.