There's just been a couple of moments where - we did the one [ Carpool Karaoke] with Justin Bieber, which kind of went crazy and I think is at, like 65 million views on YouTube .

There were a couple of years where I got a bit lost - I went out too much, I was a bit heartbroken, thought I was a bit more of a dude than I really was. I would love to go back and have a strong word with myself.

I sometimes have an over-confidence that can be viewed as arrogance.

I think people look at me and realize that I am definitely not in line to the throne. It feels very easy living in Great Britain. The world is a much smaller place than it used to be, it doesn't feel like a huge cultural difference living here.

If our show [Carpool Karaoke] shines, then I shine. I don't ever want to come out and make anything about me. I want to make it about them, make them the best that they can be. And the whole thing is a collaboration, those carpools.

It was a chance meeting with a lady at Mariah Carey's record company who was here in our office, actually. And I pulled her in here to this very office that we're sitting in now, and I played her the clip of me and George Michael singing. And I was like, it's joyful. And that's what people want.

Sometimes you can have a reputation for not being relatable and nice because you had a bad day once. That's the thing. You know, I think that's particularly pertinent with Justin [Bieber] because, like, you just forget how young he is.