Singer Pink is now a mother-of-two!

The 37-year-old announced on Dec. 28 that she had given birth to a baby boy. The Grammy winner and husband Carey Hart are already parents to five-year-old daughter Willow. “Jameson Moon Hart 12.26.16,” she captioned a photo of her infant son, revealing that he was born the day after Christmas.

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Jameson Moon Hart 12.26.16

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The “Lady Marmalade” hitmaker first posted about her pregnancy in late November, writing “Surprise!” next to a photo of her already large baby bump. She later shared a pic of her daughter practicing her diapering skills on a baby doll. “Dry run,” the proud mom hilariously captioned the image.

On Wednesday, Pink also shared a pic of her hubby cradling their new addition, writing, “I love my baby daddy.”

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I love my baby daddy 💙

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The longtime couple has certainly been through their fair share of ups and downs. After meeting in 2001, Pink proposed to her motocross beau after four years of dating, and they married in Costa Rica on Jan. 7, 2006.

Though they split in February 2008, the pair eventually reconciled in Feb. 2010. A year and a half later, they welcomed their first child. When speaking about their breakup, the “So What” singer admitted, “We take breaks. We’ve had two breaks. The first one was about a year. And the second one was 11 months.”

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But the duo seem more solid than ever, with Pink confessing during a recent appearance on Good Morning America, “I would like a third [child]… Carey’s an awesome husband and a really good dad.”

The blonde beauty previously revealed what worries her most about being a parent. “What scares me more is having a breakable child,” she told E! News. “[Willow] needs to be out in the world and be able to do things for herself.”

Scroll through the gallery below for photos of Pink and her growing family!