Pierre Delanoë (born Pierre Charles Marcel Napoléon Leroyer; 16 December 1918 – 27 December 2006) was a French lyricist who wrote thousands of songs for dozens of singers, including Dalida, Edith Piaf, Charles Aznavour, Petula Clark, Johnny Hallyday, Joe Dassin, Michel Sardou and Mireille Mathieu. Source: Wikipedia (en)