For Hailey Baldwin (or Hailey Bieber, as she's now known on Instagram and the backs of denim jackets), her birthday was exactly that-especially when you factor in her cake surprise from the new hubby.
The 24-year-old singer tied the knot with model Hailey, 22, in a secret ceremony in NY in September and after the pair hosted Thanksgiving together for both of their families on Thursday (22.11.18), Justin took to Instagram to gush about married life.
Just before Hailey blew out her candles, a family member yelled out, "First married birthday!" - further confirming reports they got married earlier this year.
Hailey's father Stephen Baldwin was present for his daughter's big day, as well as Justin's mom Pattie Mallette and her cousin Kahlea Baldwin, who both posted pictures and videos from the cover girl's B-day bash.
"My heart is COMPLETELY and FULLY YOURS and I will ALWAYS put you first!" he added.
It's the first time he's confirmed he's married to Hailey Baldwin.
Later on, the singer brought out a second cake for Hailey-this time for eating-and the families sang "Happy Birthday" to her.
"First thanksgiving as a married man, first time hosting thanksgiving".
Though Bieber's post did not come on actual Thanksgiving, he told fans that he wanted to wish them a Happy "late" Turkey Day.
He also added, "love isn't always easy" but said he was trying, like Jesus Christ, to be more patient and selfless.
The couple were rumoured to have married in a NY courthouse two months ago, but Hailey Baldwin denied it at the time. "But gods grace is sufficient", he wrote on Friday morning.
Meanwhile, Justin has dialled back his work commitments in order to spend more time with his new wife and sources say he's "content" with where his life is now.