Greg Millikan has seen 230 bands.

Band Concerts Seen
  KISS 39 concerts
  Rush 24 concerts
  311 11 concerts
  Poison 8 concerts
  Aerosmith 7 concerts
  Iron Maiden 7 concerts
  Dream Theater 6 concerts
  Dimmu Borgir 5 concerts
  King Diamond 5 concerts
  Marilyn Manson 5 concerts
  Queensrÿche 5 concerts
  Stryper 5 concerts
  Winger 5 concerts
  Dio 4 concerts
  Megadeth 4 concerts
  Mötley Crüe 4 concerts
  Overkill 4 concerts
  Savatage 4 concerts
  Whitesnake 4 concerts
  Amon Amarth 3 concerts
  Armored Saint 3 concerts
  Cradle of Filth 3 concerts
  Deftones 3 concerts
  Exodus 3 concerts
  Fishbone 3 concerts