When We All Fall Asleep, Where Do We Go? (stylized in all caps) is the debut studio album by American singer Billie Eilish. It was released on March 29, 2019, by Darkroom and Interscope Records. Eilish co-wrote most of the record alongside her brother Finneas O'Connell, who handled its production. Musically, the album has been characterized as a pop, avant-pop, art pop, and electropop record, though features several other genre influences including hip hop and industrial music.