10 Celebs Who Share December 18 (And Some Wacky Facts About Them)

Brad Pitt is that actor who just can’t stay off your screen. He snagged an Oscar for Once Upon a Time in Hollywood and runs a cool production company too. Oh, and if you ever wondered how he paid dues, he once worked dressed as a giant chicken for a fast-food joint. Talk about commitment!

Billie Eilish burst onto the scene with "Ocean Eyes" and has been winning Grammys like it’s a game ever since. Known for her unique vibe and cool fashion, she was actually a budding dancer before a growth plate injury at 14 made her switch gears to music. That’s quite the plot twist!

The mastermind behind Jaws and E.T., Steven Spielberg basically invented the summer blockbuster. He’s got Oscars galore, but guess what? He wasn’t even accepted into film school on his first try thanks to so-so grades. Who knew a college rejection would lead to iconic movies?

Christina Aguilera ruled pop in the late ’90s, belting out hits like "Genie in a Bottle." Before she was a household name, she tried out for The All New Mickey Mouse Club but was too young—so she waited two years and then crushed it. Patience is a virtue, folks!

If you don’t know Sia by name, you’ve definitely heard her killer voice on hits like "Chandelier." She’s famous for performing with her face hidden (yes, really) and being a fierce animal rights supporter. And here’s a bonus: she spends time campaigning to save pets and fight big animal breeders. Rock star and hero!

You might remember Katie Holmes as Joey Potter from Dawson’s Creek. Fun fact: she actually turned down the lead in Buffy the Vampire Slayer just to finish high school! Later, she dove into all sorts of film projects, showing she’s not just a teen TV star but a real storyteller.

Marcus Butler made a name as a British YouTuber with funny vlogs and then wrote a book called Hello Life!. Before all that, he was a serious gymnast — until bullying at school made him quit. Sometimes life throws curveballs, but he bounced back like a champ!

Bridgit started out as Disney royalty on Good Luck Charlie and didn’t stop there. She went on to snag degrees from MIT and Harvard (yes, really) and now works in satellite tech. Oh, and she’s a proud parent, too. Brainy and talented? That’s Bridgit!

Keith Richards helped create The Rolling Stones and basically defined rock ’n’ roll. Here’s a wild one: as a kid, he sang in a choir at Westminster Abbey for Queen Elizabeth II. Rock star by day, boy soprano by... also day?

Ronald Acuña Jr. came onto the baseball scene with a bang — winning Rookie of the Year, then hitting crazy milestones like 40 home runs and 70 stolen bases in a season. And get this, he signed for just $100,000 back in 2014. Talk about a bargain buy!