For someone so conflicted, who am I to give advice to anybody? It’s such a funny, grandiose idea

All the words are already there when you're singing onstage, it's fantastic. You can lose yourself in what you've created. You're controlling this freedom.

I'm completely in love with the world but also terrified of it. It creates some overwhelming feelings. Wanting to battle out that joy and fear is part of my music.

I'm a light sleeper. I've never been one of those people who can put their head down and suddenly everything disappears. Nighttime is the time I get most scared, anxious or worried. In those darker moments before waking or sleeping is when I feel most, I don't know, I can turn on myself, and my imagination can take me dark places.

I got to live out my 11-year-old fantasies - I got to go on stage with Green Day. Billie Joe called my name from the stage. 'Dookie' was the first album I ever bought. I covered the whole of 'Nimrod' and he'd heard it. That was like the 11-year-old girl dreamed.

I get in fights with my sister all the time. She comes on the road with me and we fight - like sisters do.

I've been having this really weird anxiety dream about arriving too late or too early, and the people in charge are like, 'You have to leave! You have to go back to the hotel and get ready!' And I use the wrong exit, and I'm running down the red carpet in ­pyjamas, like, 'No! Don't look at me!'