You know, like, there's songs like "Valerie" and "Bang Bang Bang" that I was so proud of. And, you know, the level of success that they had - if they were little cult hits meant that, you know, I could sellout Webster Hall or Williamsburg Musical Hall or the El Rey theater in LA. Like, that was having made it to me. So the thought of having a number one song in my own career, like, never even registered.

So sometimes if I'm working with a rapper, like Ghostface Killah or Nas, producing usually means, in hip-hop, that you make the music. You make the beat, and you give it to them. And they write the rhymes.

Making music is a lifestyle; go to the studio and sit in front of your computer, drum machine or guitar for 10 hours a day. The good stuff will come.

And then, also, when you're doing something that doesn't sound like anything else on the radio at the time, you almost need to, like, ironclad it to make sure it gets through, you know?

I had a somewhat frenetic childhood because my mum and dad split up when I was five, and then my mum remarried.

And I remember that about three years before that, her first record had come out. And I just remember really liking this one song off it called "In My Bed" and being a little bit enamored. This, you know, this young kind of Jewish girl from North London, you know, I have the same thing - from a Jewish family from North London - with this incredible voice.

I think Katy B encapsulates young London in a way I never could. She reps London harder than anyone song-wise since Lily Allen.