"She knocked it out of the park. And Donald Trump is probably going to be throwing plates of food against his wall tonight."

"Vote like your life depends on it because it does," the pop artist said alongside her brother in a video shared on social media.

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.