Expanding a bit on Sara's remarks about celebrities and politics, I have to say I don't mind it per se when celebs take a stand on public issues. I don't think Susan Sarandon has embarrassed herself opposing the war, for example, because she's a smart person who knows how to engage in a serious debate; the same's true of Dennis Miller, over on the pro-war side. What I object to is airheads taking a public stand. And it just so happens that an awful lot of celebrities are also airheads.
Then again, so are a lot of congressmen.