Sean O'brien has seen 139 bands.

Band Concerts Seen
  Deftones 4 concerts
  Limp Bizkit 4 concerts
  Thrice 4 concerts
  Incubus 3 concerts
  Sevendust 3 concerts
  Tool 3 concerts
  Animals as Leaders 2 concerts
  Dave Matthews Band 2 concerts
  Dredg 2 concerts
  Everclear 2 concerts
  Fair To Midland 2 concerts
  Flyleaf 2 concerts
  Karnivool 2 concerts
  Korn 2 concerts
  La Dispute 2 concerts
  Lit 2 concerts
  Megadeth 2 concerts
  Melvins 2 concerts
  O'Brother 2 concerts
  Snot 2 concerts
  Staind 2 concerts
  Sugar Ray 2 concerts
  System of a Down 2 concerts
  2 Skinnee J's 1 concert
  3rd Bass 1 concert