Systemfan3 has seen 17 bands.

Band Concerts Seen
  blink-182 4 concerts
  A Day To Remember 1 concert
  Alkaline Trio 1 concert
  All Time Low 1 concert
  Andrew WK 1 concert
  Bad Religion 1 concert
  Fall Out Boy 1 concert
  Good Charlotte 1 concert
  Less Than Jake 1 concert
  Neck Deep 1 concert
  Ogikubo Station 1 concert
  Save Ferris 1 concert
  Simple Plan 1 concert
  TAT 1 concert
  The Menzingers 1 concert
  The Offspring 1 concert
  Together PANGEA 1 concert