Mariah Carey, Nick Cannon Debut Twins

Back in May, Mariah Carey and Nick Cannon welcomed their twins, Moroccan and Monroe, into the world. And months after their birth, the happy parents sat down with Barbara Walters on Friday for a "20/20" special, where they debuted their bundles of joy.

Nicknamed "Dem Babies," the twins were born via C-section on the couple's three-year wedding anniversary as Carey's track "Fantasy" played. However, the pregnancy itself wasn't much of a fantasy for the superstar. "I don't think I understood the enormity and the magnitude of what it really does to your body," she told Walters. "Carrying two babies. Unless somebody's been through it, it's difficult to understand what I went through, because my pregnancy was very unique in terms of what happened to me.

"I had serious back problems," she continued. "I was afraid I wasn't going to be able to walk properly again. It was a huge strain."

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Carey first confirmed she was pregnant last October after lots of speculation; she also opened up about her struggles to get pregnant. So when it came time to welcome her babies into the world, she wanted it to be a happy experience.

"They came into the world to a live version [of 'Fantasy']," she said, "and the only reason I wanted it to be the live version is because I wanted them to hear the applause upon entering the world."

Cannon expressed equal amounts of excitement over their family, telling Walters during the special, "My family gives me everything. Unconditional love means ... the world to me. I mean, it's completion."

Shortly after the special aired, the couple launched a website for the babies, dembabies.com, where they take fans inside their family through pictures.

"We deliberated for so long about how to reveal the first pictures of our babies to the world. We just didn't want to do the typical thing and display them in a tabloid (not that there's anything wrong with that)," a statement on the site reads. "We decided to share this beautiful experience with you in a special intimate portrait of our family. Parenthood is absolutely the most life changing experience we could ever have imagined. The love we feel for these babies is above and beyond anything we'd ever dreamed of."