Katie Hallmark has seen 27 bands.

Band Concerts Seen
  Mitski 2 concerts
  Olivia Rodrigo 2 concerts
  Arlo Parks 1 concert
  Beyoncé 1 concert
  BROCKHAMPTON 1 concert
  Chappell Roan 1 concert
  Cigarettes After Sex 1 concert
  Darren Criss 1 concert
  Dianna Agron 1 concert
  Dirty Heads 1 concert
  girl in red 1 concert
  Harry Styles 1 concert
  Hayley Kiyoko 1 concert
  Holly Humberstone 1 concert
  Idina Menzel 1 concert
  Jane Lynch, Kate Flannery, Tim Davis, and Tony Guerrero 1 concert
  Jenny Lewis 1 concert
  Khalid 1 concert
  Lettuce 1 concert
  Odd Eye Circle 1 concert
  One Direction 1 concert
  Owenn 1 concert
  Pentatonix 1 concert
  Phoebe Bridgers 1 concert
  Queen + Adam Lambert 1 concert