Robin R Williams has seen 15 bands.

Band Concerts Seen
  Disturbed 2 concerts
  Kansas 2 concerts
  .38 Special 1 concert
  Bon Jovi 1 concert
  Buckcherry 1 concert
  Chimaira 1 concert
  Def Leppard 1 concert
  Flyleaf 1 concert
  Killswitch Engage 1 concert
  Lacuna Coil 1 concert
  Nonpoint 1 concert
  Prince 1 concert
  REO Speedwagon 1 concert
  Skid Row 1 concert
  Stone Sour 1 concert