There are three bands/artists that have released music under the name Mantus:
1) is a German doom Metal band and was dissolved in 2005 but reunited in 2008.
2) is a heavy metal band started by Greg Blakely of Derbyshire, UK.
3) was a NYC disco act who issued the first 12" ever remixed by Jellybean Benitez "(Dance It) Freestyle Rhythm" , a New York radio & club hit in 1978. (more info on below)