After accidentally calling her baby bump "they," [article id="1650985"]Mariah Carey[/article] had everyone speculating that she and Nick Cannon were having twins. And on his radio show on Thursday morning (December 16), Cannon confirmed as much.

"We are having twins," he told his listeners. He said that while the couple has been trying to keep details about the pregnancy as private as possible, Carey let the news slip to the president and first lady when she spoke to them backstage at TNT's "Christmas in Washington 2010" on Sunday.

"They, ironically enough, questioned my wife about, you know, 'So, what are you having, are you having twins?' " he recalled of the conversation Carey had with the Obamas. "And at this point, she hadn't told anybody anything because doctors advised us to keep it to ourselves until we get further along. 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."

On Wednesday, Cannon danced around the twins question in an interview. "It's a touchy issue, because you never want to speak on too much stuff too early, but my wife, at one time, she referred to her stomach as 'they,' and that probably wasn't the wrong thing for her to do," he said to E! News. "That's all I'm gonna say."

The couple has yet to reveal the due date, but [article id="1651094"]Carey admitted[/article] back in October that finally telling everyone she was pregnant after months of speculation was a "relief."

"I feel like it made everyone else around me a little more relaxed," she said on Cannon's radio show about making the announcement. "I feel like they were extra super-cautious about everything, yet not, because they didn't know they were allowed to be."