Pregnant, Nude Britney Spears vs. Pregnant, Nude Christina Aguilera: The Biggest Photo Finish Ever

They used to battle it out at the top of the pop charts. Now Britney Spears and Christina Aguilera are singing a different - nude and pregnant - duel!

In the fall of 2006, a naked Britney Spears, pregnant with little Jayden James, posed for some ... well, interesting photos for Harper's Bizarre. Er, Bazaar.

Then, earlier this week, we were treated to hot photos of a knocked up Christina Aguilera nude, turning Marie Claire into Marie Bare. Okay, sorry for the bad puns.

Anyway, here's a Hollywood Gossip photo finish of Britney Spears and Christina Aguilera, naked, preggers and ready to explode. Which pic is the hottest?

Britney Spears and Christina Aguilera: Nude. Pregnant. Hot. We think.

Not to be left out in the cold (which would be quite chilly, wearing nothing), a pair of far less famous, but equally naked and pregnant stars, deserve to be included in this photo finish. Follow the jump for some sort of sexy pictures of both a nude Lisa Rinna and Katie Price - with child and without clothing ...

Katie Price with her enormous breasts, husband and unborn child.

Lisa Rinna got so naked while preggers that we had to censor this pic!