Michael O Brien has seen 76 bands.

Band Concerts Seen
  Billy Joel 10 concerts
  Bruce Springsteen & The E Street Band 6 concerts
  Elton John 5 concerts
  Dead & Company 4 concerts
  The Avett Brothers 4 concerts
  The Who 4 concerts
  Bon Jovi 3 concerts
  Brandi Carlile 3 concerts
  Bruce Springsteen 3 concerts
  Eagles 3 concerts
  Grouplove 3 concerts
  P!nk 3 concerts
  AJR 2 concerts
  Brett Eldredge 2 concerts
  Def Leppard 2 concerts
  Gavin DeGraw 2 concerts
  Hunter Hayes 2 concerts
  Jay-Z 2 concerts
  KidCutUp 2 concerts
  Paul McCartney 2 concerts
  Zac Brown Band 2 concerts
  Ben Folds 1 concert
  Beyoncé 1 concert
  BonJovi 1 concert
  Boyz II Men 1 concert