Millie Armstrong has seen 67 bands.

Band Concerts Seen
  Harry Styles 4 concerts
  Wet Leg 3 concerts
  Inhaler 2 concerts
  Lewis Capaldi 2 concerts
  Niall Horan 2 concerts
  RAYE 2 concerts
  Sikoti 2 concerts
  Zara Larsson 2 concerts
  Aby Coulibaly 1 concert
  Anne-Marie 1 concert
  Arlo Parks 1 concert
  Ashnikko 1 concert
  Baby Queen 1 concert
  Becky Hill 1 concert
  Black Traffic 1 concert
  BLK 1 concert
  Brooke Combe 1 concert
  Cassyette 1 concert
  Cat Burns 1 concert
  Catfish and the Bottlemen 1 concert
  Céleste 1 concert
  Charlie Sparks 1 concert
  Circa Waves 1 concert
  DJ Boring b2b Sally C 1 concert
  Ewan McVicar 1 concert