Julien Clerc – Wikipedia

He changed his name to Julien Clerc upon signing a contract with Pathé Marconi, releasing his first album in May 1968. The album went on to win the Académie Charles Cros Record Award. In 1969, Clerc went on the Olympia stage for the first time to open for Gilbert Becaud’s concert.

https://en.wikipedia.org/wiki/Julien_Clerc