Green Day Geek has seen 23 bands.

Band Concerts Seen
  Motionless In White 3 concerts
  Black Veil Brides 2 concerts
  Fall Out Boy 2 concerts
  Ice Nine Kills 2 concerts
  A. A. Williams 1 concert
  Atreyu 1 concert
  Badflower 1 concert
  Bad Omens 1 concert
  Bring Me The Horizon 1 concert
  Daisy Grenade 1 concert
  ERRA 1 concert
  Fit for a King 1 concert
  From Ashes to New 1 concert
  Green Day 1 concert
  Incubus 1 concert
  In This Moment 1 concert
  Invent Animate 1 concert
  Paris Jackson 1 concert
  Royal & the Serpent 1 concert
  Sleep Token 1 concert
  The Interrupters 1 concert
  We Came As Romans 1 concert
  Weezer 1 concert