Greg Wallis has seen 342 bands.

Band Concerts Seen
  Little Feat 49 concerts
  Buddy Guy 11 concerts
  Los Lobos 10 concerts
  The Allman Brothers Band 8 concerts
  Grateful Dead 7 concerts
  Eric Clapton 6 concerts
  Bonnie Raitt 5 concerts
  David Bromberg 5 concerts
  Joe Cocker 5 concerts
  Otis rush 5 concerts
  Taj Mahal 5 concerts
  ZZ Top 5 concerts
  AC/DC 4 concerts
  Cheap Trick 4 concerts
  Deep Purple 4 concerts
  Jethro Tull 4 concerts
  Journey 4 concerts
  Junior Wells 4 concerts
  Koko Taylor 4 concerts
  Koko Taylor & Her Blues Machine 4 concerts
  Muddy Waters Blues Band 4 concerts
  Prince 4 concerts
  Quicksilver Messenger Service 4 concerts
  Roomful of Blues 4 concerts
  Santana 4 concerts