A BARBARA WALTERS EXCLUSIVE: ELTON JOHN AND DAVID FURNISH

Proud Fathers Sit Down Exclusively with Barbara Walters in Their First Major U.S. Television Appearance Since Son Was Born, on "20/20," Friday, April 22 on ABC

Plus: Teen Sensation Demi Lovato Speaks Candidly to ABC News' Robin Roberts In First Television Interview Since Leaving Treatment

And: Chris Cuomo Reports on Distracted Drivers

Elton John and his partner David Furnish sit down with Barbara Walters for their first major U.S. Television interview since the birth of their son, Zachary, this past Christmas. In the interview, John and Furnish discuss why they wanted a child, how they kept the baby a secret until he was born, and how fatherhood has changed them both. They also introduce Walters to Zachary, their four-and-a-half-month old son. John will also reveal details of his latest project. The exclusive interview airs on "20/20" (10:00-11:00 p.m., ET), FRIDAY, APRIL 22 on the ABC Television Network.

Plus: With her own hit television show and starring roles in popular movies, gold records and an international concert tour, Demi Lovato appeared to have it all. But during her tour last fall, the 18-year-old star slowly began to unravel and, after a family intervention, checked into treatment. Now Lovato sits down for her first television interview since spending three months in treatment. She speaks candidly to ABC News Anchor Robin Roberts about her struggles with cutting and food addictions, and, for the first time, talks about the depression that has plagued her since childhood -- and how she's learning to find her smile again.

And: So many of us now use our cell phones while driving that it's clear the risks involved have largely been ignored. But new research shows we are not as good at this kind of multitasking as we believe we are -- in fact 15 Americans are killed every day by distracted drivers. To see just how tough it is to avoid accidents while distracted, "20/20" found drivers who boasted of their ability to safely handle texting and driving at the same time. We put them to the test on a special highway track, with surprising results. And as our cars are increasingly stuffed with distracting gadgets and gizmos, what will work and what won't when it comes to finding a solution to distracted driving? Chris Cuomo reports.

"20/20" preview video: http://abcnews.go.com/2020

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