Since Obama asked, yes Mariah's having twins

It took a president to get the answer Mariah Carey's fans have been waiting for.

She is to be the mother of twins, husband Nick Cannon confirmed on Thursday.

Speculations about the sex of the ear-piercing singer's unborn child have been about ever since she announced she was pregnant.

On Thursday, Cannon himself put rumors to rest on his radio show, telling listeners, "We are having twins." 

The pair have steered clear of revealing too much information on their "long journey" to parenthood, which included a miscarriage in 2008.

But she couldn't refuse to answer a question from the US President.

While performing at TNT's Christmas in Washington 2010 on Sunday, Carey ran into President Obama and First Lady Michelle Obama backstage. "They, ironically enough, questioned my wife about, you know, 'So, what are you having, are you having twins?' " Cannon said on his radio show.

"And at this point she hadn't told anybody anything because doctors advised us to keep it to ourselves until we get further along," he said. "And because of the excitement, because of the emotion, she was overwhelmed [and] she shared with the President and First Lady that we are having twins."

Exactly when she is due to deliver has not been declared -- although we're sure they told the Obamas!