Photo by Kevork Djansezian for Getty Images

Mariah Carey can now add writer to her resume.  She and her husband Nick Cannon are writing a children's book together which will star their twins. 

The children's Christmas book starring the couple's twins Moroccan and Monroe will be called "Roc and Roe's Twelve Days of Christmas."  Roc and Roe are the twin's nicknames in case you hadn't guessed that yet.

The book, which will be out this fall, will follow the twins as they put their spin on the classic Christmas carol.  It'll be illustrated by New York Times best selling artist  A.G. Ford and published by Scholastic Press Picture Books.

"Roc and Roe's Twelve Days of Christmas" is the celebrity couples first book.  But will it be the last?

(Source: billboard.com)