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This is 40! Take a look at all the famous faces turning 40 this year…
Jana Kramer — a "One Tree Hill" alum-turned-country music singer — marked her milestone 40th birthday on Dec. 2. Just a few weeks prior to the milestone celebration, Jana welcomed her third child, Roman James Russell, with fiance Allan Russell, and later revealed the baby was intended to be born on her birthday.
She took to Instagram with a photo of her family of five on the big day, writing, "Anyone that has known me since I was 30 has known about my 40th birthday plans. It was one of the many things I wouldn't shut up about 😂 But like they say, you make plans and God just laughs at them. When we found out Roman's due date was my birthday i knew all along God had a way better plan than I could have ever dreamt of. This was exactly how this was always supposed to look and I wouldn't trade it for anything or any beach in the world. I'm home, with my family… The biggest Unanswered prayer of a gift for my 40th."
Keep reading to see more stars who were born in 1983…
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Former WWE sensations, "Total Bellas" stars and twin sisters Nikki Bella and Brie Bella — who now go by their birth names, Nikki and Brie Garcia — celebrated their 40th birthdays on Nov. 21.
The siblings weren't together on their birthday but celebrated with each other a few days later. "We're having a two-month birthday season," Nikki told People magazine.
Brie — who marked her 40th in Arizona with husband Bryan Danielson and her friends and family there ahead of Thanksgiving — said she and Nikki were planning to go wine tasting together after the November holiday and later take a trip to Italy's Lake Como.
Nikki was excited to be spending her 40th birthday in Los Angeles at a "Dancing With the Stars" live show on Taylor Swift night. "When I found out what night it was on the 21st, I'm like, 'Girl, on my 40th birthday, this is the perfect night,'" Nikki told People, adding that after the taping, she planned to head to Caviar Kaspia, one of her favorite restaurants: "That's the perfect ending to my 40th birthday night, is caviar and a baked potato with champagne."
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It's Brody Jenner's biggest year yet! In mid-June, he and professional surfer Tia Blanco got engaged following a little more than a year of coupledom. In late July, he became a father when they welcomed daughter Honey Raye. And on Aug. 21, the former "The Hills" and "Keeping Up With the Kardashians" star turned 40!
His fiancée took to Instagram to gush over him on his birthday, captioning a super-sweet slideshow of photos and videos, "Happy birthday to my love, favorite person, fiancé and baby daddy! I am so grateful that we found each other and to have you as my life partner. I love you more and more every single day and I can't wait to love you for the rest of our lifetimes and beyond! Cheers to this next chapter of life together as 'Mommy and Daddy.' Honey and I are so incredibly lucky to have you."
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Country music superstar Miranda Lambert joined the 40s club on Nov. 10.
The singer kept very busy as she closed out her 30s: In March, she decided to leave her record label of 20 years, Sony. And in November, just a few days before her milestone birthday, the singer announced that she's launching her very own record label — Big Loud Texas — which is an imprint of Big Loud Records and sees her teaming up with her songwriting partner Jon Randall.
As for the first year of her 40s, Miranda has a lot in store for that too! Aside from running a record label, she's set to headline the Stagecoach Festival alongside Morgan Wallen and Eric Church in April 2024.
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"American Idol" alum-turned-country music superstar Carrie Underwood blew out 40 candles on her birthday cake on March 10.
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"That '70s Show" and "Black Swan" actress Mila Kunis — who more recently starred in the 2022 Netflix drama "Luckiest Girl Alive" — strutted into her 40s on Aug. 14.
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"The Amazing Spider-Man" and "Tick, Tick… Boom!" actor Andrew Garfield has a big reason to celebrate this year — he turned the big 4-0 on Aug. 20.
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"Thor" franchise actor Chris Hemsworth turned 40 on Aug. 11.
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Canadian cutie and "Schitt's Creek" actor and co-creator Dan Levy turned the big 4-0 on Aug. 9.
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"Barbie" director and co-writer Greta Gerwig — who also wrote and directed "Lady Bird" and 2019's "Little Women" — blew out 40 candles on her birthday cake on Aug. 4.
It's been a big year for the star. In 2023, she gave birth to her second child with partner Noah Baumbach and in July, she broke a few records with "Barbie," scoring the biggest opening weekend of 2023 so far as well as shattering the first weekend earnings record for a film directed by a woman thanks to the movie's $162 million North American box office haul. Then in August, three weeks after "Barbie" hit theaters, it surpassed $1 billion at the box office — making Greta the first female director to mark the money milestone as a solo director.
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Adam Devine is now a member of the 40s club! The "Workaholics" and "The Righteous Gemstones" actor — who married his longtime love, actress Chloe Bridges, in 2021 — marked the milestone on Nov. 7.
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All grown up at last?! "Keeping Up With the Kardashians" star Scott Disick, a father of three with ex Kourtney Kardashian, celebrated his 40th birthday on May 26.
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"The Witcher" actor Henry Cavill, who portrayed Superman in the DC Extended Universe from 2013 to 2022, soared into his 40s on May 5.
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On Oct. 21, Aaron Tveit — who took home a Tony Award for best actor in a musical for his performance in Broadway's "Moulin Rouge!" — celebrated his 40th birthday.
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On Sept. 6, English socialite Pippa Middleton — the younger sister of Princess Kate — celebrated her 40th birthday.
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He's all grown up! On March 14, Taylor Hanson — a father of seven who's one-third of Hanson, the band of brothers who gave the world the hit song "MMMBop" — marked his 40th birthday.
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"Girls," "Star Wars" franchise, "Marriage Story" and "House of Gucci" actor Adam Driver turned 40 on Nov. 19.
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Former Victoria's Secret model and Koa Organics creator Miranda Kerr — who has two sons (and another on the way) with current husband Evan Spiegel, the co-founder of Snapchat, and one son with first husband Orlando Bloom — strutted into her 40s on April 20.
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Leelee Sobieski celebrated her 40th birthday on June 10. She shot to fame in the '90s when she starred in movies like "Deep Impact" and "Never Been Kissed" and earned an Emmy nomination for her work in "Joan of Arc," but she left Hollywood a decade ago to be a wife and mother and work as an artist.
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On July 9, "Christina on the Coast" and former "Flip or Flop" star Christina Hall turned the big 4-0.
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"Ray Donovan" actor Ryan Dorsey — who shares a son with "Glee" actress Naya Rivera, his late ex-wife — turned 40 on July 19.
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Singer-songwriter Michelle Branch, who rose to fame in the early aughts with albums "The Spirit Room" and "Hotel Paper," celebrated her 40th birthday on July 2.
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"Saturday Night Live" star Michael Che — a former co-head writer on the sketch-comedy show who's co-hosted the "Weekend Update" segment with Colin Jost since 2014 — turned 40 on May 19.
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"Precious" actress Gabourey Sidibe — who in 2022 revealed that she secretly got married in 2021 — said farewell to her 30s this year: She turned 40 on May 6.
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On Sept. 25, "Atlanta" and "Community" actor Donald Glover — aka music star Childish Gambino — turned the big 4-0.
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On Dec. 20, Oscar-nominated actor Jonah Hill turns 40.
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Lupita Nyong'o has said goodbye to her 30s! The Oscar-winning "Us," "Black Panther" and "12 Years a Slave" actress celebrated her milestone 40th birthday on March 1.
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On Feb. 23, "The Devil Wears Prada" and "A Quiet Place" actress Emily Blunt turned 40.
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"Parks and Recreation" and "Master of None" star Aziz Ansari turned 40 on Feb. 23.
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"Battlestar Galactica" actress Nicki Clyne — who in recent years made headlines for her membership in NXIVM, a group widely described as a cult, and for her marriage to fellow member Allison Mack, the "Smallville" actress who's serving prison time for her crimes in NXIVM — turned 40 on Feb. 11.
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On Jan. 2, "Blue Crush" and "Remember the Titans" actress Kate Bosworth — who went public with her relationship with actor Justin Long in 2022 — turned 40.
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On Oct. 3, Marvel actress Tessa Thompson — who recently appeared in "Creed III" alongside Michael B. Jordan — strutted into her 40s.
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On Feb. 27, "House of Cards" and "Pose" actress Kate Mara blew out 40 candles on her birthday cake.
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On May 14, "The Sisterhood of the Traveling Pants" actress Amber Tamblyn celebrated her 40th birthday.
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"Mission: Impossible" franchise and "Dune" actress Rebecca Ferguson bid adieu to her 30s on Oct. 19.
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"Harry Potter" and "Star Wars" franchise and "About Time" actor Domhnall Gleeson — the son of actor Brendan Gleeson — celebrated his 40th birthday on May 12.
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On June 17, country music singer Mickey Guyton — the first black solo female artist to be nominated for a Grammy in a country category — celebrated her 40th birthday.
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On Aug. 3, actress Mamie Gummer — who starred on CBS's "The Good Wife" and "The Good Fight" (and is the daughter of Oscar winner Meryl Streep) — turned the big 4-0.
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On Dec. 21, "Nope" and "The Walking Dead" actor Steven Yeun turns 40.
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On Oct. 5, socialite Nicky Hilton Rothschild, the younger sister of Paris Hilton, turned 40.
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On April 10, "Lovecraft Country" and "Dexter: New Blood" actress Jamie Chung — who's married to "One Tree Hill" alum Bryan Greenberg — celebrated her 40th birthday.
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On Oct. 5, Oscar-nominated actor Jesse Eisenberg — who portrayed Facebook founder Mark Zuckerberg in "The Social Network" and Lex Luthor in the DC Extended Universe — celebrated his 40th birthday.
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On Oct. 17, "The Theory of Everything" and "Rogue One: A Star Wars Story" actress Felicity Jones entered a new decade: her 40s.
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On Dec. 2, "Insecure" actress and comedian Yvonne Orji will strut into her 40s.
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"Friday Night Lights" fan favorite Adrianne Palicki, who played Tyra Collette on the teen sports-drama series, turned 40 on May 6.
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On Oct. 24, former 3LW and The Cheetah Girls singer Adrienne Bailon — who was a co-host on the daytime talk series "The Real" from 2013 to 2022 — blew out 40 candles on her birthday cake.
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"90210" actor Matt Lanter joined the 40s club on the most foolish day of the year: April 1st!
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Model Amber Rose turned 40 on Oct. 21.
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On Nov. 5, model and TV presenter Alexa Chung smized into her 40s.
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"The Big Sick" actress and "Ruby Sparks" screenwriter Zoe Kazan joined the 40s club on Sept. 9.
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He'll always be Chris Keller to us! Singer-songwriter and "One Tree Hill" alum Tyler Hilton walked into his 40s on Nov. 22.
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"The Sopranos" and "Fringe" actress Ari Graynor celebrated her 40th birthday on April 27.
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"Melissa and Joey" actress Lucy DeVito — the daughter of Danny DeVito and Rhea Perlman — stepped into her 40s on March 11.
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"Nathan for You" and "The Rehearsal" comedian Nathan Fielder, who hails from Vancouver, Canada, stepped into his 40s on May 12.