Kardashian, West expecting first child

ATLANTIC CITY, N.J. (AP) -  A kid for Kimye: Kanye West and Kim Kardashian are expecting their first child.

The rapper announced at a concert Sunday night that his girlfriend is pregnant. Kardashian was in the crowd at Revel Resort's Ovation Hall with her mother, Kris Jenner, and West's mentor and best friend, Jay-Z. West told the crowd of more than 5,000 in song form: "Now you having my baby."

The crowd roared. And so did people on the Internet.

The news instantly went viral on Twitter and Facebook, with thousands posting and commenting on the expecting couple.

Most of the Kardashian clan also tweeted about the news, including Kim's sisters. Kourtney Kardashian wrote: "Another angel to welcome to our family. Overwhelmed with excitement!"

West, 35, also told concertgoers to congratulate his "baby mom" and that this was the "most amazing thing."

Representatives for West and Kardashian, 32, didn't immediately respond to emails about the pregnancy.

The rapper and reality TV star went public in March.

Kardashian married NBA player Kris Humphries in August 2011 and their divorce is not finalized.

West's Sunday-night show was his third consecutive performance at Revel. He took the stage for nearly two hours, performing hits like "Good Life," "Jesus Walks" and "Clique" in an all-white ensemble with two bandmates.

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AP Writer Bianca Roach contributed to this report.