Gregory Marcus has seen 556 bands. (Page 13)

Band Concerts Seen
  Johnette Downing 1 concert
  John Fogerty 1 concert
  John Hammond 1 concert
  John Kadlecik 1 concert
  John Mahoney Big Band 1 concert
  John Mayall 1 concert
  John Mayer 1 concert
  John Medeski 1 concert
  John Molo 1 concert
  Johnny Sketch & The Dirty Notes 1 concert
  John Popper 1 concert
  Johnson Extension 1 concert
  Jon Batiste 1 concert
  Josh Homme 1 concert
  Joy Oladokun 1 concert
  Karl Denson 1 concert
  Karl Denson's Tiny Universe 1 concert
  Katy Perry 1 concert
  Keith Frank 1 concert
  Keller And The Keels 1 concert
  Keller Williams' Grateful Grass 1 concert
  Kenny Neal 1 concert
  Keys N Krates 1 concert
  Khalid 1 concert
  Kidd Jordan 1 concert