Kanye West, Kim Kardashian Expecting Baby

Singer Kanye West and girlfriend Kim Kardashian attend Gabrielle's Angel Foundation 2012 Angel Ball cancer research benefit at Cipriani Wall Street on Oct. 22, 2012 in New York

U.S. rapper Kanye West and reality TV star Kim Kardashian are expecting their first child, celebrity media outlets reported on Monday.

Fans and family took to Twitter to congratulate the celebrity power couple.

"Been wanting to shout from the rooftops with joy and now I can!'' wrote Kardashian's sister Kourtney. "Another angel to welcome to our family. Overwhelmed with excitement!''

According to E! News, West, 35, announced the news from the stage at a concert in Atlantic City on Sunday.

Kardashian, 32, who rose to fame five years ago for her appearances in reality TV show Keeping Up with the Kardashians, was the most-searched person on the Yahoo! website in 2012.

She married basketball player Kris Humphries in August, 2011, in a lavish, made-for-TV wedding, but the couple divorced just 72 days later.