Barbara Walters to Interview Mariah Carey, Nick Cannon on 20/20, 10/21

Barbara Walters will have an exclusive interview with Mariah Carey and husband Nick Cannon. Carey, a best-selling artist, will speak candidly about her difficult pregnancy and becoming a mom of two.  In addition, she will introduce her six-month-old twins for the first time on "20/20," Friday, October 21.

Six months after the birth of their twins, Moroccan and Monroe (affectionately known as "Roc and Roe"), Mariah Carey and husband Nick Cannon sit down exclusively with Barbara Walters discussing intimate details of their struggle to conceive, Mariah's high-risk pregnancy, parenthood and the unique dynamic of their marriage. And for the first time, the world will see the faces of their babies, until now hidden from public view. The exclusive interview airs on "20/20," FRIDAY, OCTOBER 21 (10:00-11:00 p.m., ET) on the ABC Television Network. Mariah Carey is the best-selling female artist of all time whose 18 No.1 singles rival all but The Beatles', and who has sold over 175 million albums to date, surpassing Elvis.

Please note: This interview will air in addition to the previously announced Chris Cuomo interview with Stephanie Madoff Mack, the first Madoff family member to break silence since Bernie Madoff's arrest.

"20/20" is anchored by Elizabeth Vargas and Chris Cuomo. David Sloan is executive producer.