Only 1 Shinobi@Msn.Com has seen 11 bands.

Band Concerts Seen
  Download Festival 1 concert
  HIM 1 concert
  Iggy And The Stooges 1 concert
  Korn 1 concert
  Linkin Park 1 concert
  Lostprophets 1 concert
  Machine Head 1 concert
  Metallica 1 concert
  Slipknot 1 concert
  Stone Sour 1 concert
  The Distillers 1 concert