Barring your 21st, your 30th聽birthday is one of the biggest birthday milestones there is. Which is why Chicago Bears quarterback Jay Cutler made sure his wife, Kristin Cavallari (whose former The Hills co-star Lauren Conrad just announced she鈥檚 going to be a mom), had an absolutely amazing one.

CENTURY CITY, CA - MAY 09: Kristin Cavallari and Jay Cutler attend the JDRF LA 2015 Imagine Gala at the Hyatt Regency Century Plaza on May 9, 2015 in Century City, California. (Photo by Todd Williamson/Getty Images for JDRF)

According to E!, Jay rented out Chicago鈥檚 Fulton Market Kitchen for an intimate party with roughly 50 of her closest friends. Decking the place out with festive balloons, cookies, cocktails and cupcakes, Jay made Kristin鈥檚 day (which started with a box of cupcakes!) extra special.

鈥淭his is the only somewhat decent picture I have from last night (and we鈥檙e both clearly sober) but Jay really went all out for my 30th birthday,鈥 the designer (and now author) shared. 鈥淗e threw the most amazing surprise party and made me feel so special and loved and I will forever be grateful for this man, my family and all my amazing friends. I am the luckiest girl in the world to have such incredible people in my life. <3鈥

Awwww, what a sweetheart! And it only gets better from here: Kristin鈥檚 off to LA now, where鈥檚 she鈥檒l be on the Golden Globes red carpet Sunday night for E!. Not a bad way to kick off your 30s, eh?

Happy birthday, Kristin!

What did you do for your 30th birthday? Tell us over @BritandCo.

(h/t E!, photos via Todd Williamson/Getty)