There are at least two bands named Fallon: A heavy metal band from the USA, and a grunge rock group from Japan.
These are photos from concerts where Fallon played, so they may be of other bands that played the concert as well.
Nephilim / Fallon / Damage Over Time / Psychosomatic / Sever the Flesh Feb 23, 2007 Orangevale, California, United States Uploaded by Sacramento Shows
Fallon / Nephilim / Psychosomatic / Dropseven / Hammerface Sep 15, 2006 Sacramento, California, United States Uploaded by Sacramento Shows
Testament / Dementia / Drone / Fallon Oct 18, 1997 Orangevale, California, United States Uploaded by Steve M