Musical sensation Lorde has an unconventional approach to songwriting, say her recent collaborators and fellow New Zealanders, Broods.

Lorde, real name Ella Yelich-O'Connor, teamed up with the brother and sister duo to write the song Heartlines, which features on Broods' new album, Conscious.

"We've always grown up playing instruments," Georgia told AAP.

When they write songs they start by playing on their instruments.

Lorde, on the other hand, begins with a fully formed concept in her head that she then has to try to translate into music.

"We work very differently," Caleb told AAP.

"Ella's stuff is all in her head, she's already got it there. Whereas we f*** about until it sounds good. We have to find it and she has to explain it to people to make it something."

The Notts were fascinated to see how Lorde worked.

"We play things whereas hers is just this huge concept in her brain, and it's amazing how she works. It's totally different to what we do so it was kind of interesting to see that," Caleb said.

"It was just like another writing session. It didn't feel like you were writing with this big person with a number one. It just felt like you were writing with this person," Caleb said

Originally posted by LoveInStereo

She doesn't play instruments. They said she hands her ideas off to other people who make her music for her. That's not a talent, you guys are delusional