On April 29th idol group Berryz Koubou performed the final performance of their "Berryz Koubou Concert Tour 2012 Spring ~Berryz Station" at Nakano Sun Plaza Hall.

One hour after the concert, Hello! Project started selling Berryz Koubou USB Memory sticks that contains performance from the afternoon concert at the day. This is the first time that the company has tried such a thing and has gathered a lot of attention from the fans.

Fans who were interested were able to reserve the USB at the hall. The USD costs �4,000 and is a limited edition item.

Source: natalie