Nicole Kidman's cringe-inducing appearance on The Late Show with David Letterman last night is continuing to serve up some aftershocks, and during the star's appearance on Regis and Kelly today, Regis treated Kidman as though she were promoting her late-night trainwreck, not Australia.To be fair, Kidman (made up to look like an insane cross between a pilgrim and the Baroness from The Sound of Music) attempted to be diplomatic about the appearance, but Regis refused to have it, placing the blame for the encounter squarely on Letterman. Careful, Regis — a war with Dave is one that few walk away from as the victor. Just look what happened to John McCain! [Live with Regis and Kelly]