Frazer Harrison/Getty Images
Celebrities know just how nice it is to have friends on the inside in Hollywood. These friends can help each other land roles, defend against the gossip magazines, or even fluff each other's dresses on the red carpet.
You surely know about Matt Damon and Ben Affleck's lasting friendship and you might be well aware that "Friends" co-stars Jennifer Aniston and Courteney Cox are best friends in real life, but there are quite a few friendships that you likely never knew about.
Here are 20 celebrity duos that you didn't know were friends.
Amy Daire contributed to a previous version of this article.
Millie Bobby Brown and Maddie ZieglerJordan Strauss/Invision/AP
Brown and Ziegler became besties after the "Stranger Things" star went to see Ziegler appear on "So You Think You Can Dance." They met backstage and instantly connected.
"You followed me on Twitter — and I had a meltdown — and the rest is history, really," Brown said when Ziegler spoke with her in 2016 for Interview Magazine.
Now the two can be spotted in Instagram posts celebrating their friendship and even visiting the Wizarding World of Harry Potter together.
Jack McBrayer and Alexander SkarsgårdRachel Murray/Getty Images
These two actors have been close friends for some time, and often appear at awards shows side-by-side. Most recently, McBrayer came to the 2018 SAG Awards with Skarsgård and the pair joshed around during the show and at an after party.
McBrayer and Skarsgård even made a "Funny or Die" video about being best friends heading out on an Antarctic adventure together.
"We were incredibly close until we spent nine days together on a boat in bunk beds," Skarsgård joked during an Esquire interview.
Chelsea Handler and Jennifer AnistonDimitrios Kambouris/Getty Images
Aniston and Handler go way way back. Handler says their friendship "just happened" and since then, she's made headlines for defending her bestie. She's called Angelina Jolie a "lunatic" and made sure that everyone knew Aniston didn't care one bit about their divorce.
However, Handler has jokingly mentioned that being best friends with someone so famous isn't as fun as one might think.
"Everywhere I go, people ask me about Jennifer Aniston's wedding," Handler said to HuffPost Live. "I always say to her, I'm like, 'Being friends with you is a burden.' You think it's hard to be friends with me? Do you know what it's like to walk down a red carpet and go, 'When are Jen and Justin getting married?' Like I'm in charge of that."
See the rest of the story at Business Insider