It's a Girl for Rebecca Gayheart and Eric Dane!

Rebecca Gayheart and her husband Eric Dane have welcomed their second child, a girl they’ve named Georgia Geraldine, the actress’s rep tells PEOPLE.

Gayheart, 40, and Grey’s Anatomy star Dane, 39, are already parents to daughter Billie Beatrice, who was born in March 2010.

“Rebecca Gayheart and husband Eric Dane welcomed Georgia Geraldine Dane on Dec. 28, just in time for the New Year!” the rep says. “Both mom and baby girl are happy and healthy, Billie is thrilled to be a big sister, and dad is getting ready to live in a house full of ladies!”

In August, an expectant Gayheart shared some details about her more relaxed second pregnancy.

“What s made it different is that I m very focused on Billie so I m not very focused on [the pregnancy]. I’m not as neurotic,” she told PEOPLE.

She also confessed to readying herself for the obstacles that awaited the couple as they prepared to parent two kids under the age of 2.

“I’ve heard that’s very challenging. But I think I’m up for it,” she said. “Eventually it’s going to be great because they’re going to be very close in age and very close, hopefully.”

The pair announced the pregnancy in July.