Guy Bonnet is an author , composer , and singer , born in Avignon , France in 1945 . He wrote the lyrics and composed the music for the French entry in the Eurovision Song Contest 1968 ( performed by Isabelle Aubret ) . In 1970 he participated in the Eurovision song contest for France with " Marie-Blanche " coming 4th out of twelve contestants . In 1983 he represented France in Eurovision again with " Vivre " ( finishing eighth ) . He wrote and composed songs for many artists including Mireille Mathieu , Sylvie Vartan , Franck Fernandel and Massilia Sound System
Eurovision Song Contest 1968
Eurovision Song Contest 1968
Guy Bonnet