There are at least 8 artists called "X".
These are photos from concerts where X played, so they may be of other bands that played the concert as well.
X / Rollins Band / Riverboat Gamblers Aug 17, 2006 Sayreville, New Jersey, United States Uploaded by Sv Roberts
X / Rollins Band / Riverboat Gamblers Aug 5, 2006 Denver, Colorado, United States Uploaded by Tomcat0011