Because you know when you first become famous, you start walking a little different because people are staring at you.

It's still very difficult for me to rely. Your weakness, the blessing of your weakness is it forces you into friendships. The things that you lack, you look for in others.

The fact is that ours is the first generation that can look disease and extreme poverty in the eye, look across the ocean to Africa, and say this, and mean it. We do not have to stand for this. A whole continent written off - we do not have to stand for this.

I used to - my earliest memory of waking up with a melody in my head was, you know, 8, 9, 10. I've always heard kind of melodies in my head.

Ethiopia didn't just blow my mind; it opened my mind. Anyway, on our last day at this orphanage a man handed me his baby and said, 'Would you take my son with you?' He knew, in Ireland, that his son would live, and that in Ethiopia, his son would die.

As hard as it is, as ghetto as it is, hip-hop is pop music. It's the sound of music getting out of the ghetto, while rock is looking for a ghetto.

I'm never nervous when I go to meet heads of state. I feel they should be nervous, because they are the ones who'll be held accountable for the lives their decisions will impact the most.