Hilton confirms Aguilera pregnancy

Singer Christina Aguilera's pregnancy has been inadvertently confirmed by socialite Paris Hilton, who revealed her friend is expecting a baby to a packed crowd in a Las Vegas nightclub.

The pair were partying at LAX Nightclub in the Luxor hotel on Saturday night when Hilton grabbed a microphone and paid tribute to Aguilera, as she and her husband Jordan Bratman looked on in shock.

Hilton said: "Congratulations to the most beautiful pregnant woman in the world. You're gorgeous."