Hollerhan has seen 208 bands.

Band Concerts Seen
  Joan Jett & The Blackhearts 4 concerts
  Billy Joel 3 concerts
  Def Leppard 3 concerts
  Matt Nathanson 3 concerts
  Red Wanting Blue 3 concerts
  Styx 3 concerts
  TWRP 3 concerts
  Weezer 3 concerts
  Alice Cooper 2 concerts
  Andrew McMahon in the Wilderness 2 concerts
  Classless Act 2 concerts
  Coldplay 2 concerts
  Donnie Iris & The Cruisers 2 concerts
  Duran Duran 2 concerts
  Evanescence 2 concerts
  Fall Out Boy 2 concerts
  Foo Fighters 2 concerts
  Game Grumps 2 concerts
  Ghost 2 concerts
  John Williams 2 concerts
  Journey 2 concerts
  Mammoth WVH 2 concerts
  Metallica 2 concerts
  Mötley Crüe 2 concerts
  Pixies 2 concerts