Deux cents nuits à l'heure (Two Hundred Nights Per Hour), is a one-off collaborative album by Québec singer-songwriters Serge Fiori and Richard Séguin, released in 1978.Fiori had recently disbanded his earlier group, Harmonium, while Séguin's folk group, les Séguins (with his twin sister Marie-Claire), had also recently folded, leaving the two artists free to collaborate on this new project.