Surprising Celebrity BFFs

The "Homeland" star and the "Girls" creator grew up in the same New York City neighborhood and have a mutual friend in common. Claire Danes even hijacked an Emmys interview with Lena Dunham and Ryan Seacrest, just to say hi to her friend.

While Danes stole the mic from Seacrest, the two actresses bonded over their love of "Scandal."

Who doesn't love "Scandal"?

Watch out Jennifer Aniston, Courteney's got a new bestie and he's a redheaded Brit who can carry a tune. In fact, Ed Sheeran became a long-term house guest at Cox's Malibu pad and even introduced her to beau Johnny McDaid, of the band Snow Patrol.

The pop star and the "Hart of Dixie" star, a mom of two, are part of a group of Taylor Swift's Hollywood besties that include Lena Dunham and Selena Gomez. Jaime King gushes about her bestie, saying, "She's the most fun, most loving, most wonderful and most generous friend, and I feel very blessed to have her in my life."

The "Gravity" star and the funny lady have been friends for years, and Sandra Bullock counts Chelsea Handler as a part of her inner circle. In fact, when it came time for Sandra to celebrate the big 5-Uh-Oh, Handler was on hand as a group of Bullock's besties headed to Wyoming for a little fun.

The "Dawson's Creek" co-stars have been besties since they both played troubled teens on the WB show. The two have remained tight ever since, and Busy Philipps is often Michelle Williams' "plus one" on the red carpet. The two are so tight that they often vacation together, complete with Instagrammed selfies documenting their travails.

The "Desperate Housewives" hottie and the poshest Spice Girl might seem an unlikely pair, but the two have been besties for quite some time. Eva Longoria is even the godmother to Harper Seven, Victoria Beckham's daughter.

The "Happyish" actor and the "Gravity" star have been friends long before George Clooney was the object of everyone's desire. The two are so tight that Clooney, a notorious practical joker, pranked Kind in a long con that lasted, he tells CBS News, "five or six years," which had Clooney convincing Kind that a terrible painting Clooney had found was painted by him — and gave it to him for his 40th birthday! The painting even hung in Kind's living room for five years before he learned that the joke was on him.

Fortunately, their long-lasting friendship is no joke.

Jenny from the block and "The King of Queens" star have been friends for years. So naturally when Leah Remini made her now-famous exit from the Church of Scientology, Jennifer Lopez publicly came to her defense, saying, "When you're raised a certain way and you're around people, you know, for a long time, you know, whatever that is it's gonna be hard, so … we're good friends."

Lopez even crafted special rings for all her besties, including Remini, that said, "I Love Me." Let's hope Lopez remembers that the next time she decides to get married.

In the most unlikely of bromances, the "Tonight Show" host and the pop star met at the 2002 MTV Video Music Awards when Jimmy Fallon was host and Justin Timberlake made his solo performance debut. The two have since collaborated a few times, including when Timberlake performed on "Saturday Night Live" as well as on Fallon's show.

Turns out fans aren't the only ones writing letters to their favorite stars. Movie stars like Reese Witherspoon are not above fan-girling their favorite celebs. So after seeing the movie "The Impossible," Witherspoon had to write Naomi Watts a letter.

Looks like it worked. The two have been photographed going to and from yoga and the gym together.

Long before the two funnymen co-starred in "Talladega Nights," they were just two super-famous guys hanging out. As for why the two are so tight, the "Wreck-It Ralph" star sings Will Ferrell's praises, saying, "We just really hit it off. I feel like I've known him since we were kids. There are a lot of comedians who are very dark and competitive, but he's not like that at all. He's just a very decent guy."