Dauberson was born in Le Creusot, Saône-et-Loire, France. On 24 May 1956, at the first Eurovision Song Contest, held at the Teatro Kursaal in Lugano, each participating country had two entrants due to the format of the competition's first year. Dany Dauberson, one of the French entrants, performed the song "Il est là" ("He's Here") while Mathé Altéry, the other French entrant, sang "Le Temps Perdu" ("Lost Time"). Dany Dauberson's score and placing remain undisclosed to this day as only the winner was announced.