A Sneak Peek at Barbara Walters' 10 Most Fascinating People

The annual special features interviews with Taylor Swift, Neil Patrick Harris and Scarlett Johansson.
2:48 | 12/12/14

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Transcript for A Sneak Peek at Barbara Walters' 10 Most Fascinating People
Barbara Walters, ten most fascinating people. In a moment, I will ask her for a hint. Who is the most fascinating person this year. And three faces you recognize and their honesty about bullying, fames, about nerves. ? Shake it off shake it off ? Reporter: Taylor swift will hardly be able to shake off the success she's had this year. But it turns out, shaking off what happened to her as a young girl, was not as easy. Like so many girls who look up to her, Taylor remembers the bullies. Were you, were you picked on by the "Mean girls"? Yes, when I was younger. When you want to badly to fit in with a group of people and they just -- Reporter: They don't want you? They don't want you. Reporter: I saw pictures of you growing up. You were an adorable girl. I went through -- Reporter: You were tall, you were awkward. I went through my fair share of buddy liing but the times I remember are when everybody was invited to something else and I wasn't. Reporter: Up next, Scarlett johannson, a brand new mother to three month old Dorothy rose, but unlike many others in front of the camera, you're not going to see much of them. We don't read a lot about you. You're not in the tabloids. How do you manage that? I've always held my cars sort of close to the chest when it came to my private life. I've already given up my anonymity just, you know, in the job that I have. And so I think, you know, my -- my family, my friends, the things that I can protect, I try to. Reporter: And then, there's Neil Patrick Harris, the star of "How I met your mother," now the newest host of the oscars, revealing for the first time, what he believes a host should do. The job of the host is like a good dinner host. Welcome in, take coats, a good party host. Reporter: You are thrilled or a little nervous? Oh, I'm both thrilled and nervous. I'm an easily star struck guy, I think it'll be wild. We all know that Neil is wildly talented. But we love that he gets nervous and an admits it. You will hear from his husband and his twin daughters. He dives in his personal life. In the meantime, I ask you every year. Can you give us a clue about the most fascinating person? If you guessed and guessed you would never guess it. Does that count? I guess it will. Thank you. Always great when you're here. Happy holidays. You too. And watch Barbara Walters, ten most fascinating people, 9:00 P.M. Sunday night. We will be watching.

This transcript has been automatically generated and may not be 100% accurate.

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