Mass Hysteria is a french metal band. Year 1995: Nirvana, Rage Against the Machine and Faith No More are at their crest when Mass Hysteria repeats without respite to give substance to their opus influenced by strong listening to Bad Brains, Prong or Slayer. Andre Gielen will give form to their fine and atomic mixing of groove, samples and snatched guitars named "Le Bien Etre et la Paix". This album will lead them on every stage all around Europe