found some vids of Katharine at the concert! She didn't get booed, but she didn't get the amount of applause the other idols got. Someone was screaming "TAYLOR" during her song.
She sang good in the vids, here they are! (thanks to mjsbigblog.com)
Also this a very scary Kat vid from when she was on Broadway.. (before AI) ... all I can say is WOW.. had to share it.