“The way that we tried to approach every piece of music is, if the song had a brain, it would be aware of its catalog.”

It’s important to recognize when a song remains important to you.

I was on a TV show called ‘Glee.’ I mean, I was on the real tail end of that show; it was already way past its peak. But still, for me aged 17 landing something like that was a big deal.

I’m not a control freak in that like I boss everybody around, but like a control freak and like, I like knowing exactly what I get to do that day and having a say.

I don’t analyze songs because I think it will make me a better songwriter, I just do it out of sheer curiosity.

I’ve learned a lot from my mom and my dad. I learn a lot every time I watch Billie perform.

A lot of the time, in pop music especially, there’s reverb. And the reason is that reverb makes vocals sound better 99% of the time. It makes the notes ring out.

Definitely for me and my sister, wherever we are the most comfortable is where the best music’s going to be made.

I always wanted to be on tour or making albums.

To me, as a producer, I always want something to set stuff apart.

I usually don’t like to annoy people in asking to work with them.

I’m just obsessed with music I guess.

I feel like a lot of music producers have, like, the same toolbox. And I think, like, to me, as a producer, like, I want something to set my stuff apart.

Obviously I’m very grateful ‘Bad Guy’ is doing so well – it’s shocking and surprising and gratifying – but I do think it’s important to try to make the next song that people are gonna be excited about.

People don’t come to see a Billie Eilish show to come to see me. They come to see her. So I just try not to screw up too much on my instruments.

When I wrote ‘When the Party’s Over,’ it had a universal quality.

I had a very positive, wonderful, happy upbringing, and still, for several reasons, I really didn’t enjoy being a child very much. I felt that I had no control over my life and everything seemed scarier and larger than life.