It is officially impossible to tell who won the birth-off between Christina Aguilera and Nicole Richie. It was confirmed by People around 6:00 p.m. PST yesterday that Nicole had given birth to a daughter and was on her way home. No word on what time the baby arrived. It’s also being confirmed by about half the celeb websites that Christina Aguilera also gave birth yesterday, sometime around 4:00 p.m. PST. Yet a few places are reporting that Aguilera’s rep says she’s still pregnant. Frankly considering how long Christina kept mum about being pregnant in the first place, I won’t necessarily believe what a rep says. According to E!, Fox News, and Star, Christina gave birth yesterday afternoon at Cedars-Sinai.

Suddenly there’s a whole new meaning to “Come On Over Baby” for Christina Aguilera. The five-time Grammy winner and hubby Jordan Bratman welcomed their first child in Los Angeles on Friday.

The couple announced the birth in a quick text message to friends and family around 4 p.m.: “Baby has arrived. Mom and dad are doing well!” (Apparently not even the prospect of dirrty diapers can dampen their spirits.)

There were no further details immediately available. “As soon as I have more information I will let you know,” the singer’s rep said.

Christina Aguilera, 27, reportedly delivered her baby on Friday, Jan. 11, at Cedars-Sinai Medical Center, the same hospital that Nicole Richie had her baby girl Harlow Winter Kate Madden just hours earlier.

[From E! News]

I think it’s pretty likely Christina did in fact have the baby yesterday, and is keeping it quiet. I doubt it’s for privacy’s sake – if anything, it increases the attention. Which is probably the point. It’s thought Christina is having a boy, since she had a blue-themed baby shower. Hopefully we’ll hear something official in the next few hours.

Update by Celebitchy: Christina Aguilera had a baby boy, but not Friday as some outlets reported. Her rep confirms to People that she had a boy named Max Liron Bratman on Saturday night at 10:05 pm and that he weighed in at 6 lbs., 2 oz. and was 20.5 inches tall. Congratulations to Christina and Jordan and welcome Max.