On Friday, August 23, Justin and Hailey Bieber made the announcement of Jack Blues’ arrival.

Pattie Mallette, Hailey and Justin Bieber. Photo: Axelle/Bauer-Griffin/FilmMagic; Hailey Bieber/Instagram

In the midst of the arrival of Jack Blues Bieber, her son Justin’s first kid, his mother is enjoying her son’s expanding family.

Following the announcement on Friday, August 23, that the Grammy winner, 30, had given birth to his first boy with model-entrepreneur wife Hailey, Bieber’s mother, Pattie Mallette, an author, expressed her excitement on her Instagram Stories, referring to the baby’s arrival as a “miracle.”

The 49-year-old Mallette commented, “OH MY HEART,” in all caps above Justin’s photo of the infant’s foot. “HELLO, JACK THE BABY! I adore you incredibly!😭😭😭👠👠👹🐹🥹.”

She wrote, “THANK THE LORD[,] WHAT A MIRACLE! 🎉💃🙌,” over the picture.

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Pattie Mallette shares message about grandson Jack Blues on her Instagram Stories. Pattie Mallette/Instagram

Mallette sent X (formerly Twitter) another emoji-filled message about Jack’s birth at the same time. “😭😭😭😭😭😭 🥹🥹🥹🫠🫠🫠 🙌🙌🙌🙌🙌🙌 CONGRATULATIONS @justinbieber & Hailey,” she tweeted. “I LOVE YOU FOREVER BABY JACK!!”

Since Mallette only has one son, Justin, Jack’s birth signifies her first grandparenthood. Through his father Jeremy Bieber, Justin is also related to three half-sisters and one half-brother.

On Saturday, August 24, 49-year-old Jeremy posted a message on X. “Papa,” he wrote, presumably referring to his son’s new role as a father.

Justin posted a picture of the child’s foot to Instagram on Friday, August 23, confirming the baby news with the message “WELCOME HOME JACK BLUES BIEBER.”

Hailey, 27, added their son’s name, a teddy bear, and a blue love emoji to her husband’s post on Instagram Stories.

A representative for Hailey told PEOPLE that the founder of Rhode was already than six months pregnant when the longtime pair originally revealed on Instagram that they were expecting their first child together in May 2024.

Two months after becoming engaged, in September 2018, the couple exchanged vows in a courtroom in New York City. A more elaborate wedding took place in South Carolina the following year.

Justin Bieber and Hailey Bieber attend the Justin Bieber: Our World event at The Edge at Hudson Yards on September 14, 2021 in New York City. Kevin Mazur/Getty