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.

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.

I guess I have a faith. I have an overriding feeling that all of this can't be for nothing. But then I also fully understand that it might be.

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 .

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

Who puts strawberries in a salad? Seriously, is this a thing now? Is it a thing I don't know about? Is it an American thing? It can be. It's freaking me out.

It doesn't help anyone to judge their happiness or career by looking at where others may or may not be. Dad said it best: 'All the time you're looking left and right at other people, you're neglecting what's in front of you.If you focus on looking straight ahead, you can take the odd glance at the future.' He's got a way of saying things sometimes that just puts everything into perspective.