Jenna Dewan Says She's 'Overcome with Gratitude' for Fiancé Steve Kazee on His 50th Birthday

Jenna Dewan is celebrating Steve Kazee on his special day!

The actress, 44, shared a touching tribute to her fiancé for his 50th birthday on Oct. 30, posting a compilation of their moments together through the years. Dewan and Kazee first started dating in 2018, and have welcomed two children together since then.

Dewan's Instagram post featured a lineup of selfies, family photos and candid snaps of Kazee, and she penned a sweet message to him in the post's caption.

"Happy birthday to my absolute favorite person. I am truly overcome with gratitude for your existence.. Thank you for being the true nucleus of grounded love that we all circulate and get to love 🥹," Dewan began.

She then praised Kazee for his sense of humor, his role in the family as a "reliable force," his dependability and his impeccable music taste.

"Your wisdom and devotion inspires everyone - and I mean everyone - around you," Dewan concluded. "This next chapter for you will be your greatest and I am so thrilled I get to love and support you through it all! We all love you more than words can express!!"

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PEOPLE confirmed Dewan and Kazee were dating on Oct. 30, 2018 — Kazee's 43rd birthday. The pair first met in 2012 while Kazee was starring in Once on Broadway, and in the fall 2021 issue of The Knot Magazine, Dewan recalled her mom had a bit of a crush on Kazee after the show.

 "We waited for a few minutes, and [Kazee] appeared. I was pushing her forward to say hi, and Steve and I just had one of those eye-catching moments," Dewan said. "It was very quick, but it struck us both. It was a moment."

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Years later, when they were both single, Kazee reached out and struck up a conversation with Dewan. Just under a year later, the couple announced they were expecting their first child together, and Dewan's second (she also shares daughter Everly Elizabeth Maiselle with her ex Channing Tatum).

Weeks before they welcomed their first son, Callum Michael, who's now five years old, Kazee proposed to Dewan on Feb. 18, 2020.

The couple posted photos of the engagement on Instagram, which saw the pair sharing a kiss and showing off Dewan's new ring. Kazee and Dewan later welcomed their daughter, Rihannon Lee Kathryn, in June 2024.