Ola Gromko has seen 13 bands.

Band Concerts Seen
  Only The Poets 10 concerts
  Louis Tomlinson 5 concerts
  Harry Styles 3 concerts
  Isaac Anderson 3 concerts
  Tom Millichamp 3 concerts
  5 Seconds of Summer 2 concerts
  Lewis Capaldi 1 concert
  Niall Horan 1 concert
  Noah Kahan 1 concert
  Oliver Keane 1 concert
  Wet Leg 1 concert
  Wolf Alice 1 concert
  Yungblud 1 concert