Mariah Carey reveals the sex of her twins!

'Nobody guessed this' exclaimed the excited mum-to-be...

Since the announcement that she was expecting twins, speculation has been mounting as to what the sex of Mariah Carey's unborn babies will be...

SEE OUR PICK OF THE MOST STYLISH CELEBRITY BABY BUMPS...

And the singer has just revealed that she's going to be having a boy, and a girl!

The 40-year-old and her husband Nick Cannon,are said to be over the moon that they'll be welcoming both a son and daughter into their home.

'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 two soon,' the mum-to-be told Life & Style magazine.

'There were fan contests on Twitter about what gender they are, and rumours about them being two boys or two girls - but nobody guessed this!'

The couple are set to welcome their new additions in April.

Congratulations!

READ: MARIAH CAREY'S EXPECTING TWINS

SEE OUR GALLERY OF STYLISH CELEBRITY BABY BUMPS HERE!