Jean Frederic Vachon has seen 525 bands.

Band Concerts Seen
  Iron Maiden 25 concerts
  Dream Theater 15 concerts
  Anthrax 14 concerts
  KISS 14 concerts
  Rush 12 concerts
  Alice Cooper 9 concerts
  Metallica 8 concerts
  Testament 8 concerts
  Voivod 8 concerts
  Guns N' Roses 7 concerts
  The Trews 7 concerts
  Ghost 6 concerts
  Iced Earth 6 concerts
  Judas Priest 6 concerts
  Megadeth 6 concerts
  Motörhead 6 concerts
  Queensrÿche 6 concerts
  Slayer 6 concerts
  The Cult 6 concerts
  Dio 5 concerts
  Disturbed 5 concerts
  Fozzy 5 concerts
  Mastodon 5 concerts
  Mötley Crüe 5 concerts
  Nightwish 5 concerts