She really bothers me for some reason. I think the fact that she is, quite clearly, one of the most obviously planted contestants we've had in the show ever makes me a bit uneasy. There has already been some stories in the press about her past audition plus the one this week about her being a cocaine taking faker - these stories generally aren't there without the showing knowing so they must be quite happy for everybody to know this information.
Plus, she isn't actually that good at singing. Her voice is paper thin, she has no strength and is very much style over substance. I don't think it will be that long until their plan for her becomes unravelled - she is a poor choice to play this sort of character.