A source reveals to UsMagazine.com that Rebecca Gayheart and Eric Dane have named their baby girl Billie.
The couple's first daughter was born March 3 in Los Angeles, her rep confirmed to the Associated Press last week.
"Mother, father and daughter are doing great," the rep had said.
Gayheart, 38, and the Grey's Anatomy star, 37 -- who wed in Las Vegas in 2004 -- never formally announced the pregnancy, but Gayheart stepped out last September with a baby bump.
During an appearance on the Ellen DeGeneres Show, Dane said that they had decided on a name for their daughter, but "Rebecca wants to wait until she sees her before we give her the name."
The actor promised it wouldn't be a quirky celeb baby name. "We went straight down the middle with this one."
Tell Us: What do you think of their baby name choice?