There are multiple artists with this name:
These are photos from concerts where Dark Matter played, so they may be of other bands that played the concert as well.
Vans Warped Tour 2018 Jul 28, 2018 Wantagh, New York, United States Uploaded by Sk
Vans Warped Tour 2018 Jul 28, 2018 Wantagh, New York, United States Uploaded by Brittaniepayge96
Lacuna Coil / Dog Fashion Disco / Dark Matter Dec 3, 2003 Kansas City, Missouri, United States Uploaded by Kansas City Concert Fiendz