Jason Gregg has seen 111 bands.

Band Concerts Seen
  Metallica 5 concerts
  Alice In Chains 4 concerts
  Pearl Jam 4 concerts
  Royal Blood 4 concerts
  The Black Keys 4 concerts
  Foo Fighters 3 concerts
  Guns N' Roses 3 concerts
  Tool 3 concerts
  Dick Dale 2 concerts
  Eels 2 concerts
  Modest Mouse 2 concerts
  My Morning Jacket 2 concerts
  Nathaniel Rateliff & the Night Sweats 2 concerts
  Peter Frampton 2 concerts
  Radkey 2 concerts
  Rancid 2 concerts
  Red Hot Chili Peppers 2 concerts
  Roger Waters 2 concerts
  Shannon and The Clams 2 concerts
  The Struts 2 concerts
  Arctic Monkeys 1 concert
  Austin Antoine 1 concert
  AWOLNATION 1 concert
  Band of Horses 1 concert
  Basement 1 concert