There is more than one artist using the name Undertaker
These are photos from concerts where Undertaker played, so they may be of other bands that played the concert as well.
Lilac City Metal Fest 2014 Feb 15, 2014 Spokane, Washington, United States Uploaded by Impeachman
Macabre / Amerced / Undertaker / Adnauseam Sep 30, 1994 Denver, Colorado, United States Uploaded by Nikki Stixx