"Nandome no Aozora ka?" (Japanese: 何度目の青空か?, "How many blue skies have there been?") is the 10th single by Japanese idolgirl groupNogizaka46. It was released on October 8, 2014. It debuted in number one on the weekly Oricon Singles Chart[1] and, as of October 20, 2014 (issue date), has sold 478,888 copies.[2] It also reached number one on the Billboard Japan Hot 100.[3] It was the 8th best-selling single of the year in Japan, with 578,174 copies.[4]
This single was released in 4 versions. Type-A, Type-B, Type-C, and a regular edition. The center position in the choreography for the title song is held by Erika Ikuta. She temporally suspended her activities to prepare for college and resumed from this single.[5]
Nogizaka46 (8 October 2014a). Nandome no Aozora ka? (Type-A ed.). Sony Music Entertainment. ASINB00MH2OA0U. SRCL-8621/8622.{{cite book}}: CS1 maint: numeric names: authors list (link)
Nogizaka46 (8 October 2014b). Nandome no Aozora ka? (Type-B ed.). Sony Music Entertainment. ASINB00MH2O9X8. SRCL-8623/8624.{{cite book}}: CS1 maint: numeric names: authors list (link)
Nogizaka46 (8 October 2014c). Nandome no Aozora ka? (Type-C ed.). Sony Music Entertainment. ASINB00MH2OA4Q. SRCL-8625/8626.{{cite book}}: CS1 maint: numeric names: authors list (link)
Nogizaka46 (8 October 2014r). Nandome no Aozora ka? (Regular ed.). Sony Music Entertainment. ASINB00MH2O9OW. SRCL-8627.{{cite book}}: CS1 maint: numeric names: authors list (link)