Credit: Kevork Djansezian/Getty Images

Mariah Carey may be staying mum, but her hubby Nick Cannon wants to clarify something: they're only expecting one bundle of joy.

"That rumor started because she said something about 'they,'' the comic told at the Time Warner Cable Launch of SignatureHome Thursday. "Something like, 'I hope they don't hate Christmas," but she was using the word 'they' as in, like, he and she."

And while Cannon said the pair doesn't know yet if it's a boy or a girl, he is coming clean about something else. Yes, he did whisper to Carey's belly that there is no Santa.

"I got in trouble for that," he told Us. "I'm a Santa-ologist. At three-years-old my Dad told me there was no Santa. And my wife is Mrs. Christmas, so I have to compromise on that."

But he's not willing to budge on his mandate that Carey stick to flats for the remainder of her pregnancy. "Yes, no more heels," he told Us. "I'm going to make sure of it!"