Hellboy is the name of more than one artist.

1) Hellboy is a breakcore/Gabba/jungle producer and a co-founder of the popular UK based breakcore-comedy label “The CITV Mashup Crew”.

2) an alias of Mike McDowell

3) A producer from Berlin, Germany. Real name Martin Liedtke.

4) DJ and producer from Cracow. Real name Łukasz M.

5) Industrial artist.

6) Electronic hardcore artist.

It may also be an incorrect artist tag for the Hellboy soundtrack. If so, do last.fm and yourself a favour. Fix your tags by putting the actual artist name in the artist field. The easiest way is to use MusicBrainz Picard. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.