16 Celebs You Probably Didn't Know Are BFFs

Whether you've got one or a whole squad, a best friend is the best thing in the world to have.

Some celebrities keep their best friends low-key and out of the spotlight, but some pair up with each other to make up our absolute favorite duos.

Here are a few you didn't know are besties!

1. Beyoncé and Gwyneth Paltrow

E! News | E! News

While these two keep a lot of their friendship on the down low, the goddess known as Beyoncé has a best friend in Gwyneth Paltrow. Whether it's getting their kids together for a playdate, attending the Oscars together, or supporting each other on Instagram, these two have an unexpected — yet delightful — bond.

2. Michelle Williams and Busy Phillips

Instagram | @busyphillipps

Long-time BFFs Michelle and Busy have been pals ever since they met on the set of Dawson's Creek. They're no strangers to the spotlight, having attended numerous events as each other's dates. This bond has been going strong for over 20 years, and it doesn't show any signs of slowing down. Look how freakin' cute they are!

3. Shawn Mendes and Camila Cabello

YouTube | The Late Late Show With James Cordon

Just friends? BFFs? Something more, maybe? No matter what they are, these two have crazy great chemistry, and they know it. Whether it's collaborating on a song, holding hands in public, or touring together, these two are a pair I ship hard.

4. Natalie Portman and Rashida Jones

Tumblr | fynatalieportman

These two are loyal through and through. They co-chair foundations together, attend events together, and even host galas together. The two Hollywood Ivy-leaguers are both politically and socially active, and have been working together since at least 2008!

5. Chrissy Teigan and Jen Atkin

Instagram | @chrissyteigan

Atkin famously got her start as Kim Kardashian's hair stylist, but now she has amassed a following of her own. Chrissy Teigan is a social media star, cookbook author, TV host, model and all-around absolute legend. Together, they're the prettiest BFFs ever. And yeah, Jen still does Chrissy's hair!

6. Reese Witherspoon and Mindy Kaling

Instagram | @commentsbycelebs

The new era of squad goals is here, and it's revolutionary. This strong, feminist duo fight for the voices of women everywhere, both on and off the silver screen. Most recently they starred together in A Wrinkle in Time, but we all know where this friendship began... With Mindy making a "Wreath Witherspoon" as her Christmas wreath in The Mindy Project.

7. Nicole Richie and Cameron Diaz

Instagram | @joelmadden

I mean, obviously! Not only best friends, these two are sister-in-laws. How cute is that? Sure, they're married to celebrity brothers (Nicole is married to Joel Madden, while Cameron is married to Benji), but the real stars here are these two. Having your friends also be your family is the dream.

8. The Rock and Kevin Hart

Yahoo | Yahoo

The Rock and Kevin Hart are definitely more like brothers than best friends. Even though they only met a few years ago, they've gone on to star in two movies together (Central Intelligence and Jumanji). Who else would totally back Kevin Hart as The Rock's running mate for president?

9. Bella Thorne and Tana Mongeau

Twitter | @tanamongeau

Bella Thorne has been acting from a young age and was even a Disney channel actor before moving onto bigger projects. She starred alongside YouTube Star Tana Mongeau in Mongeau's debut single "Hefner," and the rest, as they say, is history. Whether they're just friends or not...well, that remains to be seen.

10. Post Malone and John Mayer

Twitter | @JohnMayer

They make music, they FaceTime, they sneak into each other's concerts. Sure, they're new friends, but sometimes you just meet a person and totally know you're meant to be. This is the case for these two, whose Twitter interactions are also comedy gold.

11. Blake Lively and Florence Welch

Tumblr | humhallelujah

Longtime friends, actress Blake Lively and musician Florence Welch are so close that Blake asked Florence to guest star when she was starring in Gossip Girl. Flo even attended Blake's wedding to hilarious hubby Ryan Reynolds! This amount of girl power is too much to resist.

12. Snoop Dogg and Martha Stewart

Gifer | Gifer

Did you know that these two actually have their own show together? It's called Martha & Snoop's Potluck Dinner, and it is straight up delightful. Considering they're now on season two of the show, I'd say this friendship is not only awesome, it's also crazy successful. What's for dinner, guys?

13. Amy Schumer and Jennifer Lawrence

Twitter | @amyschumer

Birds of a feather, amirite? It almost seems insane that these two only met recently — it feels like they've been friends for years! Nevertheless, J-Law and A...Schu became fast friends, and they've been trying to do a project together for a few years now. Here's hoping those BFFs will move their offscreen friendship onscreen for us to see!

14. Salma Hayek and Penélope Cruz

Gfycat | Gfycat

Friends for over two decades, Salma and Penélope are the besties everyone wishes they had. They co-starred together in Bandidas in 2006, have attended award shows together, and always have something kind to say about one another. They're angels!

15. Dave Chapelle and John Mayer

Phish.Net | Phish.Net

They started out meeting on Comedy Central, but these two have formed a cool and unique friendship. After acting together, they teamed up multiple times to perform music together — including hosting secret, pop-up concerts!

16. Bill Nye and Meghan Trainor

Instagram | @meghan_trainor

Bet you didn't see this one coming! Bill Nye (The Science Guy) attended Meghan's That Bass tour in 2016. Whether they're actually BFFs remains to be seen — but Meghan sure seemed to think so!