Nah... she's OK! She's just having some bad days, her voice sounded different during the promotion of Passion too, but by the time of her next single, she was back to the way she was before. It can't be that she hurt her voice; sure, her Beautiful World/Kiss&Cry performances weren't perfect as usual, but her performances of Flavor Of Life before it (most notably the Utaban performance) were perfect! As for Kiss&Cry, I've noticed that she's usually like this on Music Station no matter what song she sings (something about her not being able to "switch" between "talking mode" and "singing mode") ; and her last performances of Beautiful World were better than the first two. Besides she did OK considering that some of these performances were on the same day, without giving her the chance to rest! She'll be better by her next single's release! Count on it!