talkback: did you know that "Idol" makes $8.1 million every half hour? It's TV's biggest money-maker, says Forbes. Second is "Two and a Half Men" with Charlie Sheen - although not for long, he's quitting - and freshly-axed "24" is #3, making $3 mil every 30 minutes, suggesting the show was nixed because of creative exhaustion. They could milk another season out of it if they wish - and the same goes for "Idol," which will probably run until Simon has bought all of Ibiza.

Anyway. Opinions on Aaron Kelly getting cast out? I don't watch the show, but from what I gather the kid is short, says "sir" and "ma'am," and has battled tonsillitis, all of which I can identify with. Weigh in, right here.

As long as we're at it: what did you think of Lady Gaga? Simon calls her "The most relevant pop artist in the world." I have no idea what that means.