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Hailey Bieber has given birth to her and Justin Bieber's first child, a boy named Jack Blues Bieber.

The couple, who have been married for six years, announced the birth in an Instagram post Friday evening. Justin shared a photo of Hailey holding her baby's foot and captioned the post: "WELCOME HOME JACK BLUES BIEBER 🐻"

Hailey reshared Justin's post to her Instagram story, adding a bear and baby blue heart emoji.

Hailey Bieber, 27, announced the upcoming arrival of her little one in a May 9 Instagram post. Her rep confirmed the news to USA TODAY and added that she was "a little over six months" pregnant at the time.

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She addressed the delay in her announcement in W Magazine's summer issue in July. "I didn't have a belly, really, until I was six months pregnant, which was when I announced it," she said. "I was able to wear big jackets and stuff."

The Rhode founder added: "I probably could have hid it until the end, but I didn't enjoy the stress of not being able to enjoy my pregnancy outwardly. I felt like I was hiding this big secret, and it didn't feel good. I wanted the freedom to go out and live my life."

Hailey Bieber and the "Peaches" singer, 30, say they are happy, though she revealed pregnancy brought up some intense emotions about their relationship.

"In the beginning (of pregnancy), it was super emotional for me. Like, 'I love this human so much. How can I possibly bring someone else into this?'" she said, referring to her husband. "I'm trying to soak in these days of it being Justin and me, just the two of us."

Hailey Bieber, the daughter of Stephen Baldwin and niece of Alec Baldwin, told GQ in October that she first met Justin Bieber, then 15, when she was 12, during a 2009 appearance on the "Today" show.

Much later, the pair became romantically linked and before tying the knot in September 2018.

In a 2019 Instagram post, Justin opened up about wanting to become a father.

The singer wrote he was "now very focused on repairing some of the deep-rooted issues that I have as most of us have, so that I don’t fall apart, so that I can sustain my marriage and be the father I want to be."

Contributing: Naledi Ushe, Jay Stahl