Yeah, I don't understand the drama. She's rebelling, young people are known to do that. By definition, her behavior wouldn't be rebellious if she didn't ruffle a few feathers.
I'll be happy for her if she's able to make it out of child stardom, without going completely nutso. If this is how she needs to cope with being known as a poster child for sweet innocence, then I say more power to her.
I'm more bothered by the fact that the performance was boring. o_O
I don't think her performance was boring, but everyone has different tastes. That said, she is only 21, so she is entitled to going through her stages in life. Thing is, she may lose her initial audience, and, once that is lost, she may never get her business back.