Billie Eilish Pirate Baird O'Connell (born December 18, 2001) is an American singer and songwriter. She first gained public attention in 2015 with her debut single "Ocean Eyes", which was subsequently released by Darkroom, an imprint of Interscope Records. The song was written and produced by her brother, Finneas O'Connell, with whom she frequently collaborates on music and in live shows.