Warren has seen 29 bands.

Band Concerts Seen
  Def Leppard 4 concerts
  Whitesnake 4 concerts
  Europe 3 concerts
  KISS 3 concerts
  FM 2 concerts
  Foreigner 2 concerts
  Meat Loaf 2 concerts
  Status Quo 2 concerts
  Black Star Riders 1 concert
  Black Stone Cherry 1 concert
  Bon Jovi 1 concert
  Cheap Trick 1 concert
  Chris Rea 1 concert
  C.Macleod 1 concert
  Giorgio Moroder 1 concert
  Heart 1 concert
  Joanne Shaw Taylor 1 concert
  John Parr 1 concert
  Journey 1 concert
  King King 1 concert
  Mötley Crüe 1 concert
  Neil Diamond 1 concert
  Paul McCartney 1 concert
  Phil Collins 1 concert
  Steel Panther 1 concert