Japan knows how to use sex to sell stuff. Even if its government bonds. The country's Ministry of Finance has brought on girl pop group AKB48 as part of a promotion campaign to sell "reconstruction bonds,". They are being used to finance the rebuilding of the areas of Japan hit hardest by the earthquake and tsunami last year according to WSJ.

The government wants to issue about $33.7 billion of bonds, but there have been a lackluster in buyer interest because of lower interest rates on the debt. To help boost the confidence, they got the pop group AKB48 to help.

The 64-member girl group originated as a theater performance in the Akihabara district of Tokyo. Their CDs sell millions in a day and they have a legion of fans. They've grown so large that they had no choice but to split into "teams" and members ranging from 14 to 26.

AKB48's promotions are expected to roll out next year and is part of a greater campaign utilizing several celebrity faces to sell the bonds, according to the WSJ. Check out the promo below: