Millie’s World <3 has seen 30 bands.

Band Concerts Seen
  Anson Seabra 12 concerts
  Harry Styles 9 concerts
  Louis Tomlinson 8 concerts
  Niall Horan 6 concerts
  Shawn Mendes 5 concerts
  Taylor Swift 4 concerts
  We Three 4 concerts
  Jonas Brothers 3 concerts
  Cian Ducrot 2 concerts
  Olivia Rodrigo 2 concerts
  One Direction 2 concerts
  Only The Poets 2 concerts
  Paramore 2 concerts
  5 Seconds of Summer 1 concert
  Alfie Jukes 1 concert
  Burna Boy 1 concert
  Capital Summertime Ball 1 concert
  Cro 1 concert
  Dean Lewis 1 concert
  Halsey 1 concert
  Jonah Kagen 1 concert
  Lauran Hibberd 1 concert
  Martin Garrix 1 concert
  Meduza 1 concert
  Nothing But Thieves 1 concert