Kat Costello has seen 145 bands.

Band Concerts Seen
  JAUZ 6 concerts
  NGHTMRE 4 concerts
  Tiësto 4 concerts
  Alesso 3 concerts
  Cash Cash 3 concerts
  Excision 3 concerts
  GRiZ 3 concerts
  Porter Robinson 3 concerts
  Seven Lions 3 concerts
  Alison Wonderland 2 concerts
  Armin van Buuren 2 concerts
  Audien 2 concerts
  Big Gigantic 2 concerts
  Deadmau5 2 concerts
  ILLENIUM 2 concerts
  Joyryde 2 concerts
  Kill The Noise 2 concerts
  Marshmello 2 concerts
  Martin Garrix 2 concerts
  Midnight Tyrannosaurus 2 concerts
  San Holo 2 concerts
  Slander 2 concerts
  Snails 2 concerts
  Tchami 2 concerts
  1788-L 1 concert