Mariah expecting a boy... and a girl this April

Make Mariah's one of each, please!

The singer expects to birth to a boy -- and a girl this April, she told Life & Style magazine. 

"Even before we announced it was twins, I was trying to keep everything gender-neutral, because I didn't want to impose an identity on them too soon," she laughingly told the magazine. "There were fan contests on Twitter about what gender they are and rumors about them being two boys or two girls — but nobody guessed this!"

The Grammy-winning singer has been ecstatic about her impending motherhood and husband Nick Cannon was so delighted, he couldn't stop himself from spilling the beans in December.

Cannon, 30, and Carey, 41, are preparing for the arrival of the twins' by "decorating and designing" the babies' nurseries – one in Los Angeles and one in New York, Cannon told People magazine.

He says that his wife has also been cooking up a storm and staying active with daily swims.

Friends couldn't be happier for the duo, including one who tells Life & Style: "It's all about pink and blue these days. It's truly going to be a dream come true for them. They get a son and daughter."

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