The pop star hugged the stylist over cake in sweet photos posted to Instagram.
"I love you so much," the model added.
The couple welcomed their kids via surrogate in 2021.
"They made all the noise of my twenties stop, and replaced it with joy," the star wrote of friends & family.
"I’m very grateful and always thankful," the pop star wrote.
"I’m so f--king proud of you," the singer wrote.
The former Beatle recently had a party at his house.
The star celebrated her birthday on May 19.
Get L.T. Hutton on the phone, stat.
The superstar doesn't "believe" in birthdays, after all.
