Star Wars Geek4 has seen 18 bands.

Band Concerts Seen
  Iron Maiden 3 concerts
  Abysmal Dawn 1 concert
  Cannibal Corpse 1 concert
  Chicago 1 concert
  Chris Caffery 1 concert
  Cryptopsy 1 concert
  Gojira 1 concert
  Hammerfall 1 concert
  KISS 1 concert
  Obituary 1 concert
  REO Speedwagon 1 concert
  Sabaton 1 concert
  TesseracT 1 concert
  The Protomen 1 concert
  The Raven Age 1 concert
  Toronto Symphony Orchestra 1 concert
  Trans-Siberian Orchestra 1 concert
  TWRP 1 concert