Lorde thinks her family are "insane".
The 'Royals' singer insists she is the quietest member of her household and though having to compete for attention with her three siblings meant she is unafraid to speak her mind, she has struggled to "find her voice".
She said: "We're one of the louder, more insane families. We're all super creative and impulsive.
"It's been a good environment to learn how to speak your mind, you know? And be feisty. And unapologetic.
"But weirdly, I'm the quietest member of my family. It took me a while to be able to find a voice in terms of being able to talk to people."
As she has grown more successful, the 17-year-old star - whose real name is Ella Yelich-O'Connor - admits she feels less like she needs to adopt a persona to be confident on stage.
She told Stylist magazine: "Having been on the road and performing for the better half of a year, I've found it easier for me to not have to step into some sort of alter ego or split personality anymore.
"I don't feel like, when I walk off stage, I have to be woken up. I'm confident I am there the whole time."