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.
Anthrax / Killswitch Engage / Havok Mar 4, 2018 Portland, Maine, United States Uploaded by Pneuma Lineal
Anthrax / Killswitch Engage / Havok Mar 2, 2018 Rochester, New York, United States Uploaded by Mike Kellerson
Anthrax / Killswitch Engage / Havok Feb 17, 2018 Spokane, Washington, United States Uploaded by Koyoteboy
Anthrax / Killswitch Engage / Havok Feb 14, 2018 Anaheim, California, United States Uploaded by Oreillyshane
Havok / Overkill / Crowbar Sep 15, 2017 Atlanta, Georgia, United States Uploaded by Concert Mojo