Saint-Pierre represented Belgium in the Eurovision Song Contest 1987, where she sang "Soldiers of Love" in Dutch (a song with a strong pacifistic tone). She finished in 11th place with 56 points. Saint-Pierre had already made two previous attempts to reach the Eurovision final. In 1978 she performed the song "Mélodie" in Luxembourg's qualifying heat and in 1981 sang "Brussel" in the Belgian national contest. Following "Soldiers of Love", Saint-Pierre went on to record quite a few socially-engaged songs throughout her career.