The commercial crème-de-la-crème of showbiz - the ones who command the eight-figure deals for movies, TV shows, books, or recording contracts; they have brand name status. The engine of the media-industrial complex. Letterman and Leno will gladly sign away their first born in order to corral them onto their respective talk shows - some late-night (and prime-time) wars have broken out over the decades, resulting from competition for guests.