Katie Hallmark has seen 48 bands.

Band Concerts Seen
  Chappell Roan 2 concerts
  Mitski 2 concerts
  Olivia Rodrigo 2 concerts
  Arlo Parks 1 concert
  Beyoncé 1 concert
  Blondshell 1 concert
  BROCKHAMPTON 1 concert
  Charley Crockett 1 concert
  Cigarettes After Sex 1 concert
  Darren Criss 1 concert
  Debbii Dawson 1 concert
  Dianna Agron 1 concert
  Dirty Heads 1 concert
  Ethel Cain 1 concert
  Flipturn 1 concert
  girl in red 1 concert
  Hans Williams 1 concert
  Harry Styles 1 concert
  Hayley Kiyoko 1 concert
  Hippo Campus 1 concert
  Holly Humberstone 1 concert
  Hozier 1 concert
  Jane Lynch, Kate Flannery, Tim Davis, and Tony Guerrero 1 concert
  Jenny Lewis 1 concert
  Josiah and the Bonnevilles 1 concert