ELIZABETH VARGAS INTERVIEWS YUSUF ISLAM, A.K.A. CAT STEVENS, ON ABC'S "20/20," FRIDAY, OCTOBER 1

Broadcast Marks Elizabeth Vargas' Premiere as Co-Anchor with John Stossel

Also: Brian Ross Interviews the Former Sister-in-Law of President Bush; Lynn Sherr Introduces a New "20/20" Feature: the "20/20 Inquirer"; John Stossel's "Give Me a Break" - the Debates

In her first broadcast as co-anchor of "20/20," Elizabeth Vargas profiles controversial pop star Yusuf Islam, a.k.a. Cat Stevens. Islam speaks for the first time to Vargas about being placed by the Office of Homeland Security on the "No Fly" list, not able to enter the United States. He says that he does not know why he is on the list: "I don't have any other defense, you know, than the truth, and I'm just waiting to be told what I'm supposed to have done, then I can deal with it." The former singer, who had a string of hits in the 1970s then gave it all up when he converted to Islam, also talks about his first album in 25 years. "20/20" airs on FRIDAY, OCTOBER 1 (10:00-11:00 p.m., ET) on the ABC Television Network.

Plus: ABC News Chief Investigative Correspondent Brian Ross takes an inside look at the Bush family dynasty with an interview with Sharon Bush, former wife of President George W. Bush's brother, Neil.

Also: "20/20" premieres a new interactive feature called the "20/20 Inquirer," built from viewer questions posted on ABCNews.com. The first report asks: "Does sucking up get you ahead or does it just irritate people?" ABC News Correspondent Lynn Sherr searches for the answer.

And: John Stossel's "Give Me a Break": presidential debates.

"20/20" is anchored by Elizabeth Vargas and John Stossel. David Sloan is the executive producer.