Vassiliki, Baroness von Ruffin (born Vassiliki Papathanasiou, , 23 August 1949 (disputed year of birth), known by her stage name Vicky Leandros, is a Greek singer with a long international career. She is the daughter of singer, musician, and composer, Leandros Papathanasiou (also known as Leo Leandros as well as Mario Panas). In 1972, she achieved worldwide fame after winning the Eurovision Song Contest with the song, "Après Toi", while representing the country of Luxembourg.