He plays the heavily manipulated audio (a “vocal chop,” as Eilish calls is), and Eilish asks Finneas if he has the original sound from which that came. He did and he played it, and it was Eilish singing,

Billie Eilish and Finneas are voting the color of the final track on their May album, Hit Me Hard and Soft: blue. In honor of National Voter Registration Day, the sister-brother musical duo endorsed Kamala Harris' presidential campaign and urged fans to get to the polls this November to help stop what they called an "extremist" agenda from Republicans.