I think that American music, for me, it's a synthesis of a lot of different things. But for me growing up in North Carolina, the stuff that I was listening to, the things that I was hearing, it was all about black music, about soul music.

I was a huge Beatles fan. We could talk about who I listened to growing up and what my sources were, but certainly the Beatles were a late, important resource for me, and I just took my guitar and a handful of songs, and I decided, well, I'll just go over and travel around Europe and see what comes of it.

It is the most delightful thing that ever happens to me, when I hear something coming out of my guitar and out of my mouth that wasn't there before.

One of my earliest memories was me singing 'Oh, What A Beautiful Mornin' at the top of my voice when I was seven. I got totally carried away. My grandmother, Sarah, was in the next room. I didn't even realise she was there. I was terribly embarrassed.

We have plenty of young women coming into biology and medicine, but we don’t have enough coming into physics and engineering. It’s a really weird thing because, of course, all these subjects are completely neutral."

Users are trying to discover apps; we are trying to improve the app discovery process, and developers are trying to reach users. If you step back, it's a problem we solved with search and ads in search.

At its core, what we do in 'MythBusters' is turn science into an adventure.

I wish that one of my children will be like the Australian guy from the Discovery Channel show. The crocodile hunter.