Guess Who’s Blowing Out Candles on October 16?

John Mayer’s been wowing us with his guitar skills and smooth tunes for years. He’s won seven Grammys and made us all slow dance to hits like Continuum. He’s also a watch collector and all-around nice guy who helps veterans.

Fun tidbit: His guitar obsession kicked off after watching Back to the Future—thanks, Marty McFly!

Flea’s bass game is next level, and as a founding member of the Red Hot Chili Peppers, he’s made us want to dance forever. You might also have seen him act in Back to the Future Part II.

Fun tidbit: He once dreamed of being a jazz trumpet player before slapping that bass.

You know Tim Robbins from The Shawshank Redemption and Mystic River (hello, Oscar winner!). He’s got the acting chops and even directs. Plus, he’s one of the tallest Oscar winners out there at 6’5".

Fun tidbit: His height makes him tower over most celebs—with talent to match!

Loreen’s powerhouse vocals and dreamy dance beats won her Eurovision twice (yeah, two times!). Her song “Euphoria” is basically a party starter everywhere.

Fun tidbit: Before the spotlight, she was behind the camera producing Swedish reality TV.

Caterina plays the boss neurosurgeon Amelia Shepherd on Grey’s Anatomy, making us love doctors even more. Off-screen, she’s big on Down syndrome awareness.

Fun tidbit: She juggled full-time acting while earning a degree in literary studies and philosophy. Talk about multitasking!

Inna’s catchy electro-house hits like “Hot” and “Sun Is Up” have made clubs everywhere explode with fun. She’s snagged MTV awards and loves supporting kids’ rights.

Fun tidbit: Her stage name? It’s a sweet nickname her grandpa gave her. How cute!

David Zucker made us laugh till we cried with classics like Airplane! and The Naked Gun. Before Hollywood, he even ran a comedy show out of a bookstore. Genius!

Fun tidbit: Who knew—a fancy bookstore backstage was the birthplace of his hilarious ideas.

Paul Sparked our interest in shows like House of Cards and movies like The Greatest Showman. Before acting, he almost became a chemistry whiz thanks to a scholarship.

Fun tidbit: Chemistry to TV magic—talk about a plot twist!

Todd’s been bossing it in shows like Star Trek: Picard and 12 Monkeys while also writing video games and creating geeky comics.

Fun tidbit: He co-wrote a Dungeons & Dragons cocktail book and runs a nerdy merch shop called Nerd Circus. Party time!

Rachel rocked Big Brother, won it, and kept racing on The Amazing Race. She now keeps fans hooked as a digital host.

Fun tidbit: She’s got brains too—a chemistry degree before jumping into reality TV!