With a video, the Grammy-winning siblings voiced their support for Harris. “We voted for Kamala Harris and Tim Walz because they are fighting to protect our reproductive freedom, our planet and our democracy,” said Eilish. 

Both Eilish and her brother Finneas now join the list of celebrities who have publicly voiced a vote for the U.S. vice president in recent weeks.

“We cannot let extremists control our lives, our freedoms and our future,” Finneas added during the video. “The only way to stop them and the dangerous agenda of Project 2025 is to vote and elect Kamala Harris.”

The brothers' announcement coincided with National Voter Registration Day as a way to encourage their supporters to register to vote next November 5th in the presidential election.

In addition, the singer's endorsement came a week after Taylor Swift also publicly expressed her support for Harris, just after the end of the presidential debate between the candidate and former Republican presidential candidate Donald Trump, on September 10th.