Paula Hasn't Sniffed Out TMZ ... Yet

3/10/2008 6:18 PM PDT
"American Idol" has been trying to smoke out TMZ's mole within their ranks like mad -- but Paula Abdul apparently isn't part of the lead search party.

In fact, at David Letterman's show, oddly out of the loop in all things "Idol" -- she says she hasn't even seen the new stage set, which TMZ got a sneak peek at earlier today.