Mariah IS having twins, Nick Cannon confirms... and the Obamas were the first to know!

By DAILY MAIL REPORTER Happy news: It has been confirmed that Mariah Carey is expecting twinsEver since Mariah Carey referred to her unborn child as 'they', the rumour that she was having twins has refused to go away.And despite flatly denying the claims only a week ago, her husband Nick Cannon has finally confirmed the rumours. The radio DJ told listeners today on his radio show Rollin With Nick