If you had to sing AND dance wouldn't you be tired as fuck to sing live? :/ shes still singing with the playback...its better than American pop singers LIP SYNCING! Jesus fucking Christ guys, would you think less of her because she uses playback? Lots of Japanese idols use play back like Aki Akane! If you had to scream that much in songs in ONE show than your voice would be damaged as fucked....you guys should seriously think about these things before you post retarded things like that...