"Mauvaise foi nocturne (la réponse)" is a 2006 song recorded by French act Fatal Bazooka, lead 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).
The video was nominated at the 2008 Victoires de la musique in the category "Best music video of the year", but it didn't win.
In France, the single went straight to #6 on March 3, 2007, only two days after its release. Then it climbed to number-one, where it stayed for five weeks (it was Youn's fourth number-one single in France). Thereafter, it dropped slowly but regularly on the chart, totalling 12 weeks in the top ten, 19 weeks in the top 50 and 31 weeks on the chart (top 100).
In Belgium (Wallonia), "Mauvaise foi nocturne" was charted for 26 weeks in the top 40. It entered the chart at #29 on March 3, climbed quickly and eventually reached number-one from its fifth to its ninth week. It ramined in the top five for another six weeks, then dropped.
The single was less successful in Switzerland, peaking at #15 on April 1, 2007, and staying in the top 100 for 15 weeks.
| Country | Certification | Date | Sales certified | Physical sales | Digital downloads |
|---|---|---|---|---|---|
| Belgium | Gold | May 19, 2007 | 20,000 | ||
| France | Gold | April 19, 2007 | 200,000 | 135,400 | 16,930 |
| Chart (2007-2008) | Peak position |
|---|---|
| Belgian (Wallonia) Singles Chart | 1 |
| French Digital Chart | 1 |
| French SNEP Singles Chart | 1 |
| Swiss Singles Chart | 15 |
| End of year chart (2007) | Position |
|---|---|
| Belgian (Wallonia) Singles Chart | 6 |
| French Digital Chart | 41 |
| French Singles Chart | 6 |