Sewermask has seen 9 bands.

Band Concerts Seen
  Looming 1 concert
  Mom Jeans. 1 concert
  Origami Angel 1 concert
  Oso Oso 1 concert
  Pool Kids 1 concert
  Prince Daddy & The Hyena 1 concert
  Runaway Brother 1 concert
  Save Face 1 concert
  The Front Bottoms 1 concert