Alyson Hannigan has welcomed a baby girl!

Ohh my gosh, and we just saw her walking around looking all fabulous. Aaand it seems she'd already had the baby when that picture was taken. Sneaky!

Yes, Alyson Hannigan, 38, and her hubby, Alexis Denisof, 46, welcomed their second child — a girl! — on Wednesday, May 23rd. And the name is....

KEEVA JANE DENISOF!

Lovely! Apparently, it's an Irish name, meaning "beautiful."

Earlier today, Alyson tweeted a photo of the new baby's hand. Awww!

Baby Keeva joins big sister Satyana, 3.

Congrats to the family!

Love! xo Haley-O