(For the Japanese ska band, see ムラマサ☆. muramasa is NOT the correct tag.)

There are at least three artists with this name:
1. A British trap producer
2. A Japanese electronic producer
3. A Slam/Brutal Deathcore band from USA

1. Alex Crossan is a 16 year old trap music producer from Britain. He describes himself as a "Young, Unsigned, English producer making fresh, exciting and intelligent experimental music."
He released his debut EP on TrapDoor in April 2013.

2. muramasa is a Japanese electronic music producer credited for an arrange of chain on the album Diverse Style from “B” 6thstyle. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.