Superstar Celebs Mariah Carey and Nick Cannon talk candidly about their life with twins with Barbara Walters on ABC’s 20/20 this Friday, October 21, 2011.  The babies have been pretty much kept from public view since their birth on April 30th — until now that is. Expect to see the girl/boy twins Monroe & Moroccan, and hear details of Mariah’s pregnancy, their marriage, and more.

Watch a video preview at the 20/20 website: http://abcn.ws/oNsEFw