Julieth Mars Toussaint was born in 1957 in Saint-Pierre, Martinique.
He moved to Paris in 1960, graduating from EDPI (a private industrial design school) - specializing in advertising - in 1977.
He began working in advertising after his military service in 1979, then as a fashion designer from 1981, first in haute-couture (Paco Rabanne, Givenchy, Saint Laurent, Montana) then in women's ready-to-wear.
Julieth Mars Toussaint began painting in 1989. In 1999, he moved to Berlin, before returning to Paris in 2005, where he currently lives and works.
Galerie des Tuiliers organized a solo exhibition for him in Lyon in 2012.