It's important for me to treat a girlfriend with respect. My mum would be horrified if I behaved any differently - and I have sisters, and would hate for them to be treated badly by guys.

Woah! Calm down, Curly!

One time, Niall sat on the floor for hours trying to find a way of putting his M&M's in alphabetical order.

I'm constantly learning as a songwriter, so naturally that makes you grow as an artist. But I also think the more time I spend in music the more time I feel I understand it; or at least I understand where I stand amongst the industry and my identity within it all.

Always be nice to people. Whatever how bad they are to you. To show them you are not like them.

I've been told throughout my career that I have good instincts, and the idea of discovery and development in terms of a new artist is so exciting to me. Being only 25 and in a position where I might be able to grant opportunities is really cool.

When I'm at home alone, I run up the stairs naked. It's quite funny.