Although tbh I came back from Tokyo just a week ago and the songs I heard the most playing in shops were from Kana Nishino's new album (this girl's voice is EVERYWHERE!! omg lol) and Charice's Pyramid.
So in terms of music playing in stores, there was no Arashi's new single or anything. Commercial/billboards is a different matter, ofc.
BUT, I heard Ayu on one occasion too! It was in a shoe shop in Ikebukuro where it seemed they were playing a best album. Heard evolution, appears, etc.
Anyway, is there no sales update on Sundays?