Katzki has seen 56 bands.

Band Concerts Seen
  Trivium 5 concerts
  Malevolence 2 concerts
  Rammstein 2 concerts
  The Hu 2 concerts
  Amaranthe 1 concert
  Apocalyptica 1 concert
  As I Lay Dying 1 concert
  Beast In Black 1 concert
  Behemoth 1 concert
  Beyond Black 1 concert
  Bleed From Within 1 concert
  Blind Guardian 1 concert
  Bokassa 1 concert
  Carach Angren 1 concert
  Code Orange 1 concert
  Corvux Corax / Seidrblot / Ravensdale 1 concert
  Dark Tranquility / Enciferum / Nailed to Obscurity / Brunhilde 1 concert
  Disconnected 1 concert
  Disturbed 1 concert
  Draconian 1 concert
  Duo Jatekok 1 concert
  Eluveitie 1 concert
  Explosions in the Sky 1 concert
  Fangclub 1 concert
  Ghost 1 concert