The pair recently spent time together in Savannah, Georgia, where Kristen has been filming Lizzie, a new movie about Lizzie Borden who was infamously accused of murdering her father and stepmother with an ax in the 19th century.
Kristen Stewart has been rocking her signature pared down tom boy style of late.
Their bond stretches all the way back to high school, and Hamm still calls Rudd one of his oldest pals in Hollywood.
Helen Mirren and Russell Brand have a rather, er, intimate friendship.
"(50) has been with me through thick and thin."After they filmed 2011's "Moneyball" together, Brad Pitt, right, and Jonah Hill have maintained a friendship.
Pitt even let Hill stay in his New Orleans home for months while Hill was filming "This Is The End," and Hill confirmed on "The Howard Stern Show" that he and Pitt keep in touch regularly.
They've been spotted catching a lunch here and there, too.
Hollywood hunks Jon Hamm, left, and Paul Rudd have a friendship that's lasted for years.
One of her high-level supporters is Lena Dunham, who can often be found singing Swift's praises on Twitter.
We didn't think the worlds of Hollywood and Nashville crossed all that much, but Stone loves that Swift can make her laugh.
"We're very different, but (Swift) has a sick sense of humor," Stone once told MTV.
We couldn't tell you, because this superstar seems to be friendly with everyone famous, including Lorde. The pair go way back and enjoyed cooking together so much that they launched "Martha & Snoop's Potluck Dinner Party" on VH1 in 2016.
After the teen singer picked up two awards at the 2014 Grammys, Swift -- who didn't win that night -- shared a photo to let her fans know that she was fully supporting her friends. Jennifer Lawrence spilled the beans to the New York Times in 2015 that she and new friend Amy Schumer are writing a script together. " Nye, meanwhile, flashed his all-access pass and called Trainor "my (new) BFF."Sure, Jennifer Lopez and Leah Remini are both New Yorkers who are self-proclaimed tough girls, but we still wouldn't have necessarily pegged them as BFFs.