Billie Eilish throws her chair after competing against brother Finneas in a ‘Hot Ones Versus’ challenge by ‘First We Feast.’ The interview had the brother-sister duo asking each other tough questions, and if they couldn’t tell the truth, they had to suffer the wrath of a hot sauce-covered wing. During the challenge, one of the questions prompted Finneas to share his favorite song of his sister’s, which turned out to be one that Billie admitted she forgot even existed!