Justin Bieber Shares Love Letter to Hailey For Her 26th Birthday: "You Make Life Magic"

Justin and Hailey Bieber are going strong. For Hailey's birthday this year, Justin shared a heartfelt Instagram post on Nov. 21 to honor his wife. "HAPPY BIRFDAY (in Japan) TO MY FAVORITE HUMAN BEING XOXO YOU MAKE LIFE MAGIC," the singer captioned photos of the couple bundled up in beanies and sweatpants, leaning up against bamboo. "OBSESSED WITH EVERYTHING ABOUT YOU. LOVE YOU BUM BUM."

Although the Rhode Beauty founder's 26th birthday is officially on Nov. 22, the time difference in Japan made the date come a little faster for the couple while they were abroad. "PS, it's my birthday in Japan … not back home yet," Hailey wrote on her Story while resharing her husband's sweet post.

Despite their fair share of ups and downs — from the rocky start of their relationship to the alleged Selena Gomez drama — the couple seems to be very much in love. Aside from this sweet Instagram post and loads of PDA over the years, the couple celebrated four years of marriage in September and welcomed a new puppy into their family at the beginning of November.

While Justin was the one to profess his love most recently, Hailey has spoken fondly about her husband in the past. In August, the model told Harper's Baazar about how they manage to make their marriage work, and the short answer is: They're best friends.

"He's still the person that I wanna be rushing back to," she told the publication. "I might fly somewhere and go do a job, but I can't wait to come back and hang out. And I feel like that's because of the effort that's been put in on both sides. At the end of the day, like, he's my best friend, but it still does take a lot of work to make it work. And then I know eventually when kids come in the picture, that's going to be a whole other season of navigating how to make that work."