"Mauvaise foi nocturne (la réponse)" (French for "Nocturnal dishonesty (the response)") is a 2006 song recorded by French act Fatal Bazooka, led by actor, singer and comedian Michael Youn. Pascal Obispo participated also in the vocals under the name of Vitoo. The song is the eleventh track on the album T'As Vu ?, and was released as second single in the first days of March 2007. It was as successful as "Fous ta cagoule" in terms of chart positions, becoming a number-one hit in France and Belgium (Wallonia).