NEW YORK, NY - DECEMBER 09: Television peronsality Bill O'Reilly visits "Late Show With David Letterman" at the Ed Sullivan Theater on December 9, 2010 in New York City. (Photo by Jeffrey Ufberg/WireImage)
NEW YORK, NY - DECEMBER 09: Television peronsality Bill O'Reilly visits "Late Show With David Letterman" at the Ed Sullivan Theater on December 9, 2010 in New York City. (Photo by Jeffrey Ufberg/WireImage)