The celebrity couple welcomed another daughter.
The yoga instructor posted a sweet montage that shows a glowing mother holding her newborn baby as tears fall from her eyes. The video then cuts to an image of Alec showing off the baby's footprint on his arm and a slideshow of the sweetest photos of their older kids meeting their newest sibling.
"She’s here! We are so excited to introduce you to our tiny dream come true, Ilaria Catalina Irena," she wrote in the caption.
"9-22-22 🤍✨ 6lbs 13oz🤍✨ Both she and I are happy and healthy. Her Baldwinito siblings are spending the day bonding and welcoming her into our home. Much love to you all. We are so happy to celebrate this wonderful news with you✨."
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Many celebrity friends took to the comments to congratulate the couple.
"Felicidades!!," exclaimed Mario Lopez.
Actor David Krumholtz also wished the couple well with his very enthusiastic comment: "CONGRATULATIONS!!!!"
Vanderpump Rules star Stassi Schroeder also chimed in, "Omg the biggest congratulations!!!!!!!! ❤️❤️❤️❤️."
Hilaria and Alec also share six other children, including Carmen Gabriela (8), Rafael Thomas (7), Leonardo Angel Charles (5), Alejandro David (4), Eduardo Pao Lucas (2), and Maria Lucia Victoria (18 months).
Alec also shares a 26-year-old daughter, Ireland Baldwin, with his ex-wife, Kim Basinger.