Mary Z has seen 17 bands.

Band Concerts Seen
  5 Seconds of Summer 2 concerts
  Paramore 2 concerts
  Taylor Swift 2 concerts
  Adele 1 concert
  Andrew Cushin 1 concert
  Beyoncé 1 concert
  Calum Scott 1 concert
  Ed Sheeran 1 concert
  Harry Styles 1 concert
  Jonas Brothers 1 concert
  Louis Tomlinson 1 concert
  Luke Hemmings 1 concert
  Niall Horan 1 concert
  The Lathums 1 concert
  Tommy Lefroy 1 concert
  Violetta 1 concert
  Wet Leg 1 concert