Leo Leandros ( born 1926 as Leandros Papathanasiou ) , is a Greek musician , composer and producer . Born in Astakos , Greece , Leandros left in the 1950s for Germany to pursue a career in singing and composing . He had some success , but shifted his focus to his daughter , Vicky , who had been singing from a very early age and turned out to be the real treasure . He became her manager , composer and producer when she was 13 , and is responsible for her unique training and career . Under his pseudonym '' Mario Panas '' he was the co-composer ( together with Klaus Munro ) of '' Après toi '' , the winning title of the 1972 Eurovision Song Contest , which Vicky performed for Luxembourg
1972 Eurovision Song Contest
Eurovision Song Contest 1972
Leo Leandros