Justyna has seen 22 bands.

Band Concerts Seen
  Only The Poets 10 concerts
  Alfie Jukes 3 concerts
  Tom Millichamp 3 concerts
  5 Seconds of Summer 2 concerts
  Harry Styles 2 concerts
  Isaac Anderson 2 concerts
  Louis Tomlinson 2 concerts
  Andrew Cushin 1 concert
  AR/CO 1 concert
  Charlotte Sands 1 concert
  Dawid Podsiadło 1 concert
  Lewis Capaldi 1 concert
  Luke Hemmings 1 concert
  Mark Sharp & the Bicycle Thieves 1 concert
  Niall Horan 1 concert
  Oliver Keane 1 concert
  Paramore 1 concert
  Taylor Swift 1 concert
  The Lathums 1 concert
  Tommy Lefroy 1 concert
  Wet Leg 1 concert
  Wolf Alice 1 concert