Gaia :) has seen 135 bands.

Band Concerts Seen
  Harry Styles 8 concerts
  Louis Tomlinson 8 concerts
  The 1975 6 concerts
  Gazzelle 4 concerts
  Wet Leg 4 concerts
  Fulminacci 3 concerts
  Giuse The Lizia 3 concerts
  The Academic 3 concerts
  BNKR44 2 concerts
  Calcutta 2 concerts
  Florence + the Machine 2 concerts
  Levante 2 concerts
  Lorde 2 concerts
  Mabel 2 concerts
  Niall Horan 2 concerts
  Taylor Swift 2 concerts
  Troye Sivan 2 concerts
  5 Seconds of Summer 1 concert
  Abby McCarthy (DJ Set) 1 concert
  Achille Lauro 1 concert
  Alessandra Amoroso 1 concert
  Anastasio 1 concert
  Andrew Cushin 1 concert
  Angelica 1 concert
  Annalisa 1 concert