Pieter Jan has seen 9 bands.

Band Concerts Seen
  alt-J 1 concert
  Arcade Fire 1 concert
  Foo Fighters 1 concert
  Kings Of Leon 1 concert
  Linkin Park 1 concert
  Radiohead 1 concert
  Royal Blood 1 concert
  System of a Down 1 concert
  U2 1 concert