Jurina Matsui
On October 22, AKB48's tenth single, "Ōgoe Diamond", was released on King Records' You Be Cool label. With 11-year-old SKE48 member Jurina Matsui as the single's center and cover girl, it was the first single featuring a member of AKB48's sister group and debuted at number three on the Oricon Top 10 weekly chart.