Kimye are expecting their first baby

Reality television star Kim Kardashian and rapper Kanye West are expecting their first child, it has been revealed.

The performer announced that his girlfriend is pregnant to fans at his concert on Sunday night.

He told the crowd of more than 5,000 at the Ovation Hall at the Revel Resort in Atlantic City by singing: "Now you having my baby."

West also told concert goers to congratulate his "baby moma" and that this was the "most amazing thing".

Kardashian's family have also been talking on Twitter about the news.

Kim Kardashian is pregnant 2012 Kim and Kanye West expecting baby