 After selling 1.5 million copies of the Platters' "Only You", Barclay Records rose to become the top music production company in France.His success led to his nickname as "empereur du microsillon" (king of microgroove).His francophone discoveries included the singers Hugues Aufray, Michel Delpech, Dalida (whom he launched in 1956), Mireille Mathieu, Claude Nougaro, and Eddy Mitchell.