Katja has seen 38 bands.

Band Concerts Seen
  Harry Styles 13 concerts
  Taylor Swift 6 concerts
  Ed Sheeran 5 concerts
  One Direction 5 concerts
  Paramore 5 concerts
  Anne-Marie 3 concerts
  Louis Tomlinson 3 concerts
  Niall Horan 3 concerts
  5 Seconds of Summer 2 concerts
  ATEEZ 2 concerts
  Coldplay 2 concerts
  Jamie Lawson 2 concerts
  Shawn Mendes 2 concerts
  Wet Leg 2 concerts
  Alessia Cara 1 concert
  Bang Bang Romeo 1 concert
  Bon Jovi 1 concert
  Cat Burns 1 concert
  Def Leppard 1 concert
  Elton John 1 concert
  Griff 1 concert
  Hey Violet 1 concert
  James TW 1 concert
  Julia Michaels 1 concert
  Kaytranada 1 concert