NEW YORK, NY - MAY 22: Television personality Bill O'Reilly arrives to "Late Show with David Letterman" at Ed Sullivan Theater on May 22, 2012 in New York City. (Photo by Jeffrey Ufberg/WireImage)
NEW YORK, NY - MAY 22: Television personality Bill O'Reilly arrives to "Late Show with David Letterman" at Ed Sullivan Theater on May 22, 2012 in New York City. (Photo by Jeffrey Ufberg/WireImage)