Nicolas Peyrac (born 6 October 1949 in Paris as Jean-Jacques Tazartez) is a French musician, writer and photographer. Jean-Jacques spent his youth in the small town of Saint-Brice-en-Coglès, $2, together with his brothers and parents, both of whom were physicians. As a youngster, not partial to the advance of rock 'n' roll, he had a passion for Ferré and Brel. When his parents divorced in the early 1960s, he went to live with his mother in New York, allowing him to broaden his musical horizon and discover American music. While studying at the Lycée français, he learned to play the guitar. After returning to France to live with his father, he entered a TV talent show but was unsuccessful. Refusing to let him live the life of a "vagabond", his parents pressured him into studying medicine. During his studies he discovered a passion for photography, which brought him into contact with the music business: through a family friend he had a chance to make record sleeves for artists like Alice Dona, Hervé Vilard and Gilbert Bécaud. The latter introduced him to producer Patrick Legrand (brother of composer Michel Legrand), to whom he showed some lyrics he had written. This started his career as a songwriter, writing for artists like Marie Laforêt and Gérard Lenorman. Soon after he signed a contract with Pathé-Marconi.

In 1974 Jean-Jacques, now using the stage name Nicolas Peyrac, released his first two singles, but to limited or no success.