Madder Mortem is a female fronted progressive doom metal band. It was formed in 1993 in Norway under the name Mystery Tribe.
In the beginning Madder Mortem was formed in 1993 as Mystery Tribe, and recorded the demo "Days in Sorrow". The name was changed to Madder Mortem, and in January 1997, the MCD "Misty Sleep" was recorded. The result was mailed around, Misanthropy Records reacted and the debut "Mercury" (X-ray Studios) was released in February 1999. "Mercury" was well received, but sadly, Misanthropy decided to close down, which left the Madders with neither company nor contract.