There are at least 3 bands using the name Deranged. 1) Deranged, one of the few Swedish death metal bands that came out during the early nineties, that have done their own kind of no remorse showing, intense and truly brutal death metal. No matter what other bands around were and are doing, you can be sure that Deranged will always deliver the most brutal and violent death metal man can create! Deranged have been around since 1991 and quickly after the formation of the band