Home Albums 怪物さん 怪物さん (4 years) album Release day: Friday, March 27, 2020 怪物さん 4 years old Artists Ken Hirai Name Ken Hirai When album released, He was 48, now 52 years old # Song Play 1 怪物さん by Ken HiraiAimyon Duration: 04:04 Your browser does not support the audio file player.