Withney Houston @ X Factor Italy

[C+R+E+AYUMI]

like every wednesday, yesterday night i watched X-factor Italy.
Super guest of the week was Withney Houston, here above the link of the performance.

http://www.youtube.com/watch?v=5aGQClpM2gk

First, even rewatching it, i had a big delusion.
her voice is still great and maybe also grown, but this performance was really silly to me...if there weren't the chorus, how her performace could have sounded? The chorus makes the hardest part in this case.
Anyway I appreciated her acting and her vitality.

Please, share your opinions.