There are multiple bands with this name:
These are photos from concerts where Monsters played, so they may be of other bands that played the concert as well.
Gotham City Metalfest 2009 Apr 11 - 12, 2009 Mokena, Illinois, United States Uploaded by Eric Schander
The Consequences Tour Jan 11, 2009 Mokena, Illinois, United States Uploaded by Eric Schander