But author and critic Hiroki Azuma said it was "disgusting" that the star felt she should resort to a traditional act of contrition when the only rules she had broken were those of her band's.
Masanori Azuma, head of debt capital markets at Nomura, compared it to a "bazooka" shot of easing that likely means yields on Japanese government bonds, while still near record lows, can only go up from here.