Erin 20 has seen 36 bands.

Band Concerts Seen
  The Vamps 8 concerts
  Little Mix 4 concerts
  Niall Horan 3 concerts
  5 Seconds of Summer 2 concerts
  Becky Hill 2 concerts
  Jonas Brothers 2 concerts
  Shawn Mendes 2 concerts
  The Tide 2 concerts
  Tom Grennan 2 concerts
  Aleem 1 concert
  Alessia Cara 1 concert
  Anne-Marie 1 concert
  ArrDee 1 concert
  Fleur East 1 concert
  HRVY 1 concert
  James TW 1 concert
  Jess Glynne 1 concert
  JLS 1 concert
  Joel Corry 1 concert
  Lewis Capaldi 1 concert
  Mimi Webb 1 concert
  M.O (UK) 1 concert
  New Hope Club 1 concert
  Nothing But Thieves 1 concert
  NVS 1 concert