Sometimes you can have a reputation for not being relatable and nice because you had a bad day once.

I'm a professional singer. I have a theory that all actors want to be rock stars, and all rock stars want to be actors. I spent my whole school life forming boy bands.

You want to see the joy in people, and you want to see the person that always dreamt of being a star, you know? You want to see people having a great time. So Mariah Carey is a huge fan of George Michael.

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 just wanted to perform. I just wanted to perform in whatever capacity, whether it was acting, singing, dancing, comedy - whatever it was, I just loved it and felt at my absolute happiest when I was performing for people.

I love hard work. One Man, Two Guvnors was so physically tiring I ached all the time, but I took a massive amount of pride in the fact that I only ever missed two shows.

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.