the first week of sales is over and Heavy Rotation has successfully broken 500k, having sold 516,012 copies; 14k more than Ponytail to Shushu. considering Ponytail was supported by extra copies sold because of the senbatsu election, this is a major success.
this also means they created another milestone for themselves as female artists, being able to sell more than half million for two consecutive singles in the first week; hamasaki ayumi and utada hikaru were the only other female artists to achieve this.
NOT ONLY THAT, but this also means akb48 is the first female idol group to have done this.
that calls for at least three champagne bottles.