Album Reviews21 has seen 30 bands.

Band Concerts Seen
  Metallica 2 concerts
  Ad Infinitum 1 concert
  Alestorm 1 concert
  Boris 1 concert
  Elvenking 1 concert
  Exhorder 1 concert
  Eyehategod 1 concert
  Five Finger Death Punch 1 concert
  Gloryhammer 1 concert
  Glyph 1 concert
  Gojira 1 concert
  Hammerfall 1 concert
  Hans Condor 1 concert
  Ice Nine Kills 1 concert
  Judas Priest 1 concert
  Kamelot 1 concert
  King Diamond 1 concert
  Lorna Shore 1 concert
  Mammoth WVH 1 concert
  Mastodon 1 concert
  Night Demon 1 concert
  Opeth 1 concert
  Overkill 1 concert
  Pantera 1 concert
  Sabaton 1 concert