OK, sure, who among us hasn't belted out a karaoke hit even though we didn't have the pipes for it? But restraint and common decency dictates that just because we made it through an awful rendition of "More Than A Feeling" we're not going to start thinking we should cut a demo.
Unfortunately, the pixie dust in the air in Hollywood seems to make some people think that because they excel at one thing, they can probably do just as well at something else entirely. For instance, Paris Hilton is terrific at having bangs. Seriously. There's not a bang look -- heavy, wispy, windswept -- that she can't rock. But that achievement, impressive as it is, doesn't mean anyone wants to hear her auto-tuned within an inch of her life on "Stars Are Blind."
So with that in mind, we present to you the following list of people we wish would stick to the thing they're actually good at. In the case of a few, we respectfully suggest they keep looking for whatever that is.