Billie Eilish quotes and aphorisms about people Billie Eilish Billie Eilish Billie Eilish ,, 'Bellyache' is totally fictional. I like writing about things that aren't real. The song is about n... Billie Eilish Billie Eilish Billie Eilish Billie Eilish Billie Eilish ,, I don't want people at my shows to come out and say, 'I just saw a cool show.' I want them to say, ... Billie Eilish Billie Eilish