London, Aug 26 (IANS) Singer Mariah Carey is expecting her first child at the age of 40.

She is four months pregnant, and she and her husband Nick Cannon, 29, are overjoyed, reports dailystar.co.uk.

‘Nick and Mariah have been telling friends how excited and happy they are. But she wants to wait as close to full term as possible before going public with the news,’ said a source.