this is just a thought, but it might be her new Japanese-language album. a while ago i heard a rumor that she was going to release her new jpn and eng albums simultaneously. but since there hasn't been any official word of that happening, i doubt it's the case. the only reason i don't think it's a single is the price: 26.19 USD. that's an awful lot for a single, especially considering the new english album is only 5 bucks more.