Hailey and Justin Bieber are expecting their first baby, baby, baby, ooh!

Hailey Bieber and Justin Bieber soon will welcome a new member to their family: their first child.

The “Baby” singer and the Rhode cosmetics founder revealed that they are expecting their first baby in a pair of matching Instagram posts Thursday. Their Instagram videos and photos show the “Peaches” and “Sorry” hit-maker taking photos of his model wife in a white lace gown as she cradles what appears to be a baby bump.

While the post touts the beginning of Hailey's motherhood era, the video leading the pair's Instagram compilation also seems to tease a new musical chapter for Justin. A slow, instrumental snippet of no-frills guitar, bass and drums scores a clip of the celebrity duo kissing and basking in the sun on a grassy field. Think Justin's 2015 " Love Yourself," but with more twang.

“I’m starting to be open,” he can be heard singing before the Instagram video fades to black.

Justin, 30, and Hailey (née Baldwin), 27, will welcome the baby Bieber more than four years after they married at a New York City courthouse in September 2018. In 2019, for their first anniversary, they brought their nuptials to Bluffton, South Carolina, for a lavish religious wedding ceremony.

Hailey, the daughter of actor Stephen Baldwin and niece to "Rust" star Alec Baldwin, began her romance with Justin in 2014. Four years later, with an on-and-off period in there, Justin proposed to Hailey. "I am soooo in love with everything about you," he said in a July 2018 Instagram post confirming the engagement news.

“You are the love of my life Hailey Baldwin and I wouldn’t want to spend it with anybody else,” the Grammy winner added in his lengthy caption. “You make me so much better and we compliment eachother [sic] so well!!”

Hailey’s pregnancy revelation comes more than two months after her father shared a cryptic message to his Instagram fans. Stephen Baldwin asked his Christian followers to pray for his daughter and his son-in-law.

“Take a moment to offer a little prayer for them to have wisdom, protection and to draw close to the Lord,” he said in February, according to Page Six. The “Usual Suspects” actor did not share more information at the time and had not addressed his daughter’s pregnancy as of Thursday afternoon.