@Twit Media Critic has seen 8 bands.

Band Concerts Seen
  Joe Satriani 2 concerts
  The Afghan Whigs 2 concerts
  Afghan Whigs 1 concert
  Deftones 1 concert
  Foo Fighters 1 concert
  Staind 1 concert
  Supergrass 1 concert
  Weezer 1 concert