Billie Eilish’s brother Finneas revealed there are distinctive sound effects hidden in some of her tracks, including her hits “Bury a Friend” and “Bad Guy.”
During an appearance on Monday’s episode of The Tonight Show Starring Jimmy Fallon, Finneas explained how he collected different sounds for his sister’s music.
“As a producer I always want something to set my stuff apart,” he said. “If I hear an interesting sound I’ll just record it. And then later I’ll listen through and say ‘I wonder how I can use that.’”
Eilish herself recorded the sound of a dentist’s grinding tool while having Invisalign put on her teeth. “We put it right in ‘Bury a Friend,’” Finneas said.
While in Australia, they captured the sound of crosswalk signals and used it in “Bad Guy.” Nope, those aren't hi-hats.
Finneas was named Producer of the Year, Non-Classical at this year's Grammy Awards for his work on Eilish's When We All Fall Asleep, Where Do We Go?
Watch the segment below: