William James has seen 28 bands.

Band Concerts Seen
  Little Mix 2 concerts
  Rina Sawayama 2 concerts
  A R I Z O N A 1 concert
  Ashnikko 1 concert
  ATEEZ 1 concert
  Ava Max 1 concert
  Bimini 1 concert
  BLACKPINK 1 concert
  CHVRCHES 1 concert
  Florence + the Machine 1 concert
  GOT7 1 concert
  Hemlocke Springs 1 concert
  HighSchool 1 concert
  HRVY 1 concert
  Icona Pop 1 concert
  Joesef 1 concert
  Katy Perry 1 concert
  Kim Petras 1 concert
  Mae Muller 1 concert
  Megan Thee Stallion 1 concert
  MØ 1 concert
  MUNA 1 concert
  New Rules 1 concert
  Panic! At the Disco 1 concert
  Sugababes 1 concert