There are at least four artists called Havok: (1) an American thrash metal band ; (2) a German death metal band; (3) a Swedish extreme metal band; and (4) an underground rapper.
These are photos from concerts where Havok played, so they may be of other bands that played the concert as well.
Venom / Obituary / Terrorizer / Rob Zombie / Overkill / Havok Oct 25, 2014 Mexico City, Mexico City, Mexico Uploaded by Jcharlesblack2