Betty Mars (born Yvette Baheux, 30 July 1944 – 20 February 1989) was a French singer and actress, best known for her participation in the 1972 Eurovision Song Contest.
In 1971 she was spotted singing in cabaret by composer Frédéric Botton, who offered her the song "Monsieur l'étranger" which became her first recording.
In 1972, Mars was chosen to sing the Botton-penned "Comé-comédie" as the French representative in the 17th Eurovision Song Contest, which took place on 25 March in Edinburgh.
More notoriously, she starred in the 1975 softcore film Emilienne, which was seen as an obvious attempt to cash in on the Emmanuelle phenomenon of the time.
[3] Reportedly beset by emotional and financial problems, Mars jumped from a window of her flat in La Défense on 31 January 1989.