I Dont Know has seen 21 bands.

Band Concerts Seen
  girl in red 2 concerts
  5 Seconds of Summer 1 concert
  Alfie Templeman 1 concert
  Antarctic Monkeys 1 concert
  beabadoobee 1 concert
  Blur 1 concert
  Bombay Bicycle Club 1 concert
  Declan McKenna 1 concert
  Delights 1 concert
  Isaac Dunbar 1 concert
  King No-One 1 concert
  New Order 1 concert
  One Direction 1 concert
  Panic! At the Disco 1 concert
  Taylor Swift 1 concert
  The 1975 1 concert
  The Regrettes 1 concert
  The Specials 1 concert
  The Vamps 1 concert
  Twenty One Pilots 1 concert
  Work in TV 1 concert