There are multiple artists using this name.
These are photos from concerts where Darkside played, so they may be of other bands that played the concert as well.
Seasick Steve featuring John Paul Jones on bass
Bonnaroo Music Festival 2014 Jun 12 - 15, 2014 Manchester, Tennessee, United States Uploaded by Josh5180
Tj Miller and Rory Scovel
Bonnaroo 2014 Jun 12, 2014 Manchester, Tennessee, United States Uploaded by Brantelg