Christina Aguilera is a mom for the second time after welcoming a baby girl on Saturday.

Christina gave birth to a sister for big brother Max, six, from her previous marriage to producer Jordan Bratman, at Cedars-Sinai Medical Center in Los Angeles.

The baby is her first with fiance Matt Rutler, who proposed to her this past Valentine's Day.

The Grammy winner was hard at work right up to the end of her pregnancy, just days ago tweeting a photo of herself in the recording studio with the caption, "Baby girl getting first listen to what mama's been creating in the studio."

"The Voice" judge also appears in the latest issue of V magazine, in which she poses for a nude photo shoot while pregnant. The photos prompted rumors that Christina wants to show off her body again once she drops any baby weight, this time by posing nude for Playboy magazine.

Numerous sources are saying that she has wanted to do it for a long time.