The “Life Changes” singer, 28, posted a slideshow — which included throwback pictures of Akins in a hat and overalls, an old red carpet photo and adorable windswept selfie of the duo, pictures of Akins eating sweets, snapshots of Akins in mom mode and other happy moments — in honor of the big day.
“Can’t believe this first picture was taken in 2010!!! Happy birthday @laur_akins you really are the kindest, funniest, most beautiful person inside and out on the planet,” Thomas Rhett captioned the Instagram post on Thursday.
“Honestly I hope today is filled with a little bit of nothing so you can relax for two seconds!!” he continued. “I love you babe!”
Later in the day, Thomas Rhett posted a picture of Akins grinning over an ice cream sundae with two candles in it. He captioned the photo simply with the heart eyes emoji.
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“Thomas Rhett took me to birthday lunch,” Akins said on Rhett’s Instagram Story. “Really sweet.” For Akins’ birthday, the couple is raising money for Love One International, promising to match donations.
On Wednesday, Thomas Rhett had another milestone to commemorate — landing the title of PEOPLE’s Sexiest Country Star.
“Definitely feel like I just won a high school superlative,” Thomas Rhett wrote on Instagram. “Thank you @people for this — our family group text was hilarious but brutal today.”