Besides being the role of female actress Juliette Lewis in the Oliver Stone film "Natural Born Killers" there is more than one artist with this name (see links in the Wiki sources):
These are photos from concerts where Mallory Knox played, so they may be of other bands that played the concert as well.
Pierce the Veil / Sleeping With Sirens / Mallory Knox / PVRIS Feb 11, 2015 Pittsburgh, Pennsylvania, United States Uploaded by Emilybobphoto
ONE OK ROCK / Mallory Knox / Tonight Alive Dec 12, 2014 Hamburg, Hamburg, Germany Uploaded by Fuyuderpilz
Mallory Knox / Every Time I Die / The Story So Far / A Day to Remember Feb 12, 2014 London, England, United Kingdom Uploaded by Dan Delaney
Vans Warped Tour Nov 29, 2013 Brisbane, Queensland, Australia Uploaded by Wattoson
Hit The Deck Festival 2013 Apr 21, 2013 Nottingham, England, United Kingdom Uploaded by Gwyn Williams
Canterbury / Mallory Knox / Scholars Dec 7, 2012 Sheffield, England, United Kingdom Uploaded by Hxrdtimxs
Reckless Love / Empire Of Fools / Mallory Knox Oct 23, 2012 Exeter, England, United Kingdom Uploaded by Josh King
Reckless Love / Mallory Knox / Exit State Oct 15, 2012 Manchester, England, United Kingdom Uploaded by Mark Hutchinson
Reckless Love / Mallory Knox Oct 6, 2012 Newcastle upon Tyne, England, United Kingdom Uploaded by Robyn Daniels
