Don't Smile at Me is the debut EP by American singer Billie Eilish, originally released in 2017 when she was fifteen years old. She wrote and produced the songs together with her brother Finneas O'Connell, with a restrained, electronic pop sound and whispered vocals. Well-known tracks include "Ocean Eyes", "Bellyache", "Copycat" and "idontwannabeyouanymore". The EP laid the groundwork for her rapid international breakthrough.