Many Japanese idol groups, such as the mega-popular AKB48, package incentives in with their CDs to get fans to buy multiple copies of the same exact thing. In AKB48’s case, the group occasionally includes voting ballots within special “election singles” that allow fans to vote for the member that will be featured most prominently on a new song.
Like AKB48, up-and-coming rock idol unit DEEP GIRL is using a system of incentives to encourage fans to buy their debut single, which will be released this summer. However, the group is taking an even more drastic approach by using a tiered system of prizes–along with the very real threat that the group will be instantly disbanded if their song doesn’t make it into the Oricon Weekly Top Ten.