Joe Mattar has seen 20 bands.

Band Concerts Seen
  Metallica 4 concerts
  Iron Maiden 2 concerts
  Bon Jovi 1 concert
  CLASSIC ROOTS 1 concert
  Keane 1 concert
  Kygo 1 concert
  Nickelback 1 concert
  Placebo 1 concert
  Prophets of Rage 1 concert
  Rammstein 1 concert
  Red Hot Chili Peppers 1 concert
  Roger Waters 1 concert
  Sam Smith 1 concert
  Scorpions 1 concert
  Slipknot 1 concert
  Spice Girls 1 concert
  The Weeknd 1 concert
  Tiësto 1 concert
  Tool 1 concert
  Within Temptation 1 concert