Manic McPhee?

Everybody's talking about poor American Idol runner-up Katharine McPhee's announcement that she's struggling with bulimia, but some serious haters are just adding to the drama by blabbing that the singer is a total diva to work with and that she needs an attitude adjustment. A spy tells the New York Daily News that Katharine can be "sullen and miserable," and brought some major 'tude to an appearance she did recently in New York. "Katharine was cranky and in a foul mood. When a reporter asked her about those rumors that she was invited to sing at Tom Cruise's wedding and that John Mayer asked her out, she freaked out and said, 'Why are you asking such stupid questions?'" The spy added, "She's a diva after two weeks of fame." Or maybe she's just tired, sick and super-stressed out, and really doesn't need all the negativity that comes with dealing publicly with her eating disorder. (And everyone wonders why a certain reality star with a famous musical daddy and a former fiancé insists she doesn't need medical attention.)