There are multiple artists with this name: 1) Ghoul is a thrash/death metal/grindcore band that formed in United States of America (Oakland, California) in 2001. Official Website
Official Myspace 2) Ghoul was an experimental electronic band from Sydney, Australia.
http://www.myspace.com/ghoulsydney 3) Ghoul was a legendary punk/hardcore band from Japan. Please change your tags to ＧＨＯＵＬ for this specific band. Ghoul formed in the mid 80's and were active until their front man Masami formed another band called Sqwad in early 90s, and soon after that he died.

Read more about Ghoul on Last.fm.