The producer of Lorde's hit song Royals says he also helped write Lorde's latest single Green Light.
Lorde released Green Light on Friday to rave reviews, and she praised the song's co-producer Jack Antonoff in several interviews, including a high-profile slot with Beats 1's Zane Lowe.
"We've spent 18 months every day together working on this recording in his house. We wrote the song together ... it was just such a collaborative thing with him," she said.
"He's so wonderful and totally understands me and is such a great listener. And the stuff that we've made I just really feel like we've pushed each other to make stuff that is better than anything either of us have ever done."