So what's the deal? Why was she booed on American Idol this week?
The answer was simple: the audience was SO excited to find out that she was performing that they started going NUTS right before it was about to start. SO nuts, in fact, that the stage-manager decided it wasn't worth telling them... that the performance was PRE-TAPED. That's right - KP showed up hours earlier and did the performance with NOBODY there, and the audience wasn't informed of that.
Ergo; the boos RAAAAINED down.
That was the part of them that will never ever take away from them. Or something.
FULL STORY [E!]