signature baggy shirt and neon-green dyed roots, Eilish declared that “Silence is not an option, and we cannot sit this one out.”“The only way to be certain of the future is to make it ourselves,” she said, before imploring people at home to register to vote.Her performance was the first of three musical interludes on the docket for night three of the convention.Prince Royce followed soon after Eilish with a cover of “Stand by Me” and Jennifer Hudson is set to sing later in the night, too.