Greys.Anatomy22 has seen 12 bands.

Band Concerts Seen
  Shawn Mendes 2 concerts
  5 Seconds of Summer 1 concert
  Alessia Cara 1 concert
  Bebe Rexha 1 concert
  Halsey 1 concert
  Jonas Brothers 1 concert
  Jordan McGraw 1 concert
  Lizzo 1 concert
  Niall Horan 1 concert
  One Direction 1 concert
  Public 1 concert
  The Driver Era 1 concert