Thomas Rhett Celebrates Daughter Lillie Carolina's Third Birthday: 'No Words to Describe How Much I Love You'

Thomas Rhett's daughter is another year older!

On Friday, Nov. 15, the country singer, 34, posted a series of photos on Instagram as he celebrated his youngest daughter Lillie Carolina's third birthday. In the sweet pictures, the proud dad can be seen sitting with his daughter on a carousel, posing with her on a fence and sitting on wife Lauren Akins' hip.

He also included a video of his daughter greeting a horse, holding her hand up to his nose. "Lillie Carolina there are no words to describe how much I love you..How in the world are you 3?!?!" Thomas Rhett wrote in his caption.

"Can’t wait to celebrate you today! Happy birthday!!"

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The musician and Lauren share four daughters — Willa Gray, 9, Ada James, 6, Lennon Love, 4, and Lillie Carolina.

On Halloween this year, Thomas Rhett and Lauren went through all the emotions while trick-or-treating with their little ones.

The country star and his wife got all dressed up with their four daughters as the characters from Inside Out 2 in celebration of Halloween. Lauren shared an Instagram carousel full of sweet snaps from the family of six's trick-or-treat outing.

The country singer rocked a full Fear costume complete with a giant mask of the character's face, while his wife dressed as Joy in a blue wig and yellow dress. Lillie dressed as Envy, Lennon as Sadness, Ada as Anxiety and Willa as Disgust. Each kid's look was topped off with face paint, fun wigs and impressively accurate clothing.

"JIMINY MOTHER LOVING TOASTER STRUDEL!!" the proud mom of four began in her caption, referencing a line in the film. "We felt allllll the emotions this season🎃💜💚💙🧡💛🩵."

"Anger not pictured in some photos because he was too angry at Ennui for not getting off the couch and Embarrassment couldn't work up the courage to be in a photo," Lauren joked.

While chatting with PEOPLE in August after releasing his seventh studio album, About a Woman, Thomas Rhett revealed that having children "changed his life" for the better.

“It's changed my life. It's chaos, but it's beautiful chaos,” he said of fatherhood.

“There are days where it's like, 'Good Lord, at what time are we going to bed?' But I think as they're getting older, it's been the biggest blessing in my life," the girl dad continued.