Jeff Irvine has seen 48 bands.

Band Concerts Seen
  Hatebreed 3 concerts
  Black Label Society 2 concerts
  Dream Theater 2 concerts
  Opeth 2 concerts
  Ozzy Osbourne 2 concerts
  Unearth 2 concerts
  3 1 concert
  Adema 1 concert
  Between The Buried And Me 1 concert
  Black Sabbath 1 concert
  Born of Osiris 1 concert
  Cannibal Corpse 1 concert
  Chevelle 1 concert
  Crimson Projekct 1 concert
  Deftones 1 concert
  Dimmu Borgir 1 concert
  Down 1 concert
  Glassjaw 1 concert
  Hate Eternal 1 concert
  Ill Nino 1 concert
  Into Eternity 1 concert
  Judas Priest 1 concert
  Lamb Of God 1 concert
  Lazarus A.D. 1 concert
  Limp Bizkit 1 concert