Simon De Clercq has seen 1125 bands. (Page 45)

Band Concerts Seen
  Witchcraft 1 concert
  Wolf Alice 1 concert
  Wolf Gang 1 concert
  Wolfmother 1 concert
  Wolf People 1 concert
  X 1 concert
  Xavier Rudd 1 concert
  XX Teens 1 concert
  Yeah Yeah Yeahs 1 concert
  Year Long Disaster 1 concert
  Years & Years 1 concert
  Yellowcard 1 concert
  Yo Majesty 1 concert
  You Me At Six 1 concert
  Young Guns 1 concert
  Youngman MC 1 concert
  Young the Giant 1 concert
  Your Demise 1 concert
  Youth Of Today 1 concert
  Yuck 1 concert
  Yungblud 1 concert
  Z 1 concert
  Zebrahead 1 concert
  Zero 7 1 concert
  Zita Swoon 1 concert