Dax Shepard Wishes 'Mother of Dragons' Kristen Bell a Happy Birthday: See Their Sweet Exchange!

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Bell replied with a precious tweet about her marriage.

These two! Kristen Bell rang in her 37th birthday on Tuesday with a precious message from her husband, Dax Shepard.

RELATED: Kristen Bell's 'Veronica Mars' Co-Star Ryan Hansen Celebrates Her Birthday With a Cardboard Cutout Of Her

The CHIPS star tweeted, “On this day, many moons ago, the greatest wife, mother (of dragons) and friend arrived. HAPPY BIRTHDAY my love @IMKristenBell.”

The Frozen 2 actress replied to his sweet sentiment, writing, “1 universe 8 planets 196 countries 778 islands 5 oceans And I had the privilege of meeting you.”

Bell also took to Instagram, sharing an epic throwback pic of herself with her dad, blowing out the candles on her Sesame Street birthday cake.

“I am incredibly happy to be alive. I'm grateful for my mom, my dad, and my whole family for supporting me, challenging me, and keeping me grounded. 37 feels quite good,” she captioned the photo.

MORE: Kristen Bell's 'Game of Thrones' Premiere Party Includes 'Dragon Eggs' and 'Wildling Wings' -- See the Snacks

The actress also got some birthday love from her Veronica Mars co-star, Ryan Hansen. The actor posed next to a cardboard cutout of Bell, joking, “HAPPY BIRTHDAY @kristenanniebellm. Thank you for sharing your special day with me. #brothers #superspouses."

For more from Bell and Shepard, watch the clip below!