David Alexandre Winter (real name Leon Kleerekoper) is an Amsterdam born musician. He left the Netherlands to go to Paris in 1969. He was triumphant at the 1969 Antibes Song Festival and was discovered by Riviera Records (an affiliate of the Barclay group). In April that same year his debut single, "Oh Lady Mary", was released; by September it had sold 750,000 and the million sales were achieved by November in France, where it was number one for five weeks and in the Top 10 for six months. It was also a hit in Italy (number 4).