Background
Spaak was born at Boulogne-Billancourt, Hauts-de-Seine (Ile-de-France) into a family of politicians (her grandmother Marie Janson was the first female member of the Belgian Senate and her uncle Paul-Henri Spaak and granduncle Paul-Emile Janson were Prime Minister of Belgium).
Career
Spaak spent most of her career in Italy, where she became a teenage star. From age 15 to 18, Spaak was the lead actress in at least twelve movies. As a singer, she was regarded by some as the Italian equivalent of French chanteuse Françoise Hardy, some of whose songs she recorded in 1963.