Los Angeles, California - Pretty Little Liars star Shay Mitchell has welcomed her second child, a baby girl!

Here's one secret Mitchell couldn't keep.

On Saturday, the 35-year-old Dolls star gave birth to her second child with her longtime partner, Matte Babel.

The two had kept most details private until the announcement of the birth.

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On Sunday, the mom of two revealed to fans her daughter's name in a sweet Instagram post and the special meaning behind it.

"Losing the most important person in my life in the same year I welcomed my second daughter has shifted everything for me, but one thing remains steady in my soul – I'm certain they spent time together and that brings me peace and joy," she began in the heartfelt message.

"We're so happy you're here Rome," she added, explaining that her daughter is "named after my best friend, my soulmate, my 'person,' my Grandma Romaine."

The beautiful snap showed Mitchell's newborn daughter laying on her chest while the Beis owner sported a necklace that read "Rome" in honor of her baby girl.

In February, the model announced her second pregnancy along with the heartbreaking news that her grandmother had also passed away.

Following the arrival of her newest addition, Mitchell told People that she feels "awesome" since welcoming baby Rome.

"I feel really, really good. It definitely takes a village. I'm really lucky my parents are in town and everybody's been really helpful," she shared.

Mitchell and Babel are also parents to two-year-old daughter Atlas Noa.