Caos Caos Caos カオス・カオス・カオス Kaosu Kaosu Kaosu Is A Japanese Pop Dance Group Under The GIZA Studio Label Which Features Nori Shiraishi On Vocals And Four Unknown Dancers. Formed 2010 In Hyogo Prefecture With A Song Called "AVE MARIA In Christmas Non-Stop Carol". Debuted With Their First Single Called Tear Drops For 30th Opening Of Detective Conan.