Ollszevska has seen 18 bands.

Band Concerts Seen
  5 Seconds of Summer 2 concerts
  Jann 2 concerts
  AR/CO 1 concert
  Charlotte Sands 1 concert
  Dawid Podsiadlo 1 concert
  Ed Sheeran 1 concert
  Harry Styles 1 concert
  Hinds 1 concert
  Jillian Rossi 1 concert
  Justin Bieber 1 concert
  Luke Hemmings 1 concert
  Madison Beer 1 concert
  NewDad 1 concert
  Niall Horan 1 concert
  Taco Hemingway 1 concert
  The Knocks 1 concert
  Tommy Lefroy 1 concert
  Wet Leg 1 concert