Watch: Kanye West announces that he's going to be a father

Rapper confirms Kim Kardashian is expecting their first child

Kim appears in his new video for the track ''Cold''. Just spend five minutes apart please guys! It must be written in their relationship contract that at no point can the couple be more than five yards apart. It''s like the opposite of a restraining order, and it gets you loads of publicity.

Monday 31st December 2012 by Grace Carroll | Photos by WENN

Kanye West has announced that he is expecting his first child with reality TV star Kim Kardashian.

At a concert in Atlantic City last night (30 December), Kanye decided to make the announcement - in front of all of his fans.

The rapper reportedly said, "Stop the music," before going on to add, "Make noise for my baby mama right here," referring to Kim Kardashian.

Kim's family took to Twitter later that day in order to share their excitement about the news. Kim's sister Kourtney wrote, "Been wanting to shout from the rooftops with joy and now I can! Another angel to welcome to our family. Overwhelmed with excitement!"

Kendall wrote, "Whos excited about the KIMYE babbyyy?! :D weeee" and sister Khloe added, "KIMYE!!!!! Keeping secrets is hard with so many family members! 'Especially when you are so freaking excited!!!!! LOVE is everything!!!!"

Watch a video of Kanye announcing the pregnancy below:

Kim and Kanye have been dating since April, but were previously friends for years.

Kim is currently still married to her second husband Kris Humphries, who is currently insisting on a court case as he claims that their marriage was fraud and should be annulled.

Below: did Kim Kardashian kill Kanye's cool?