The wait is over.  Mariah Carey and Nick Cannon have announced the names of their baby boy and girl.  They both start with the letter M. 

Their daughter's name is Monroe Cannon, named after Marilyn Monroe.  Mariah doesn't have a middle name and neither does her baby girl.  Their boy is named Moroccan Scott Cannon and his nickname will be "Roc."   Nick's middle name is Scott and it's also the maiden name of his grandmother.