Glen Halliday has seen 138 bands.

Band Concerts Seen
  Mastodon 8 concerts
  Clutch 7 concerts
  Tool 5 concerts
  Gojira 4 concerts
  Grateful Dead 4 concerts
  City and Colour 3 concerts
  Corrosion Of Conformity 3 concerts
  Deftones 3 concerts
  King Buffalo 3 concerts
  Kvelertak 3 concerts
  Spose 3 concerts
  The Sword 3 concerts
  6gig 2 concerts
  Animals as Leaders 2 concerts
  Ghost 2 concerts
  Incubus 2 concerts
  Killswitch Engage 2 concerts
  Lamb Of God 2 concerts
  Ministry 2 concerts
  Murcielago 2 concerts
  Opeth 2 concerts
  Phish 2 concerts
  Primus 2 concerts
  Whitcomb 2 concerts
  12th Planet 1 concert