Alec Mansion studied the piano as well as harmony and solfege at the Conservatoire Royal in Liège.
Alec Mansion is one of the few Eurovision conductors who was involved in the competition after the EBU had decided the contest was better off without an orchestra (1998).
From his days as a student onwards, he played in various rock groups and in the early 1980s, he tried to force a breakthrough as a singer.
Alec Mansion wrote music for radio and television, advertisement campaigns, and films.
In 1987, Mansion and his two brothers Benoît and Hubert (together: Léopold Nord et Vous), had an unexpected chart success with 'C'est l'amour', which was a number-two-hit in France.