フランシス・レイ
A regular early contributor of material was Francis Lai, who wrote two songs, "C'est ton nom", and "Un homme et une femme" for her first album, and who often accompanied her with his accordion on television. Her first record was recorded in the EMI studios, with Paul Mauriat's band. Mathieu's success led her record company, Barclay, to claim that they controlled 40% of the French pop record market.