In this May 3, 2012 photo provided by CBS, Stephen Colbert, left, host of the “Colbert Report” on the Comedy Central Network, has a laugh on stage with host David Letterman on the set of the “Late Show with David Letterman,” in New York. Colbert says on a visit to the late-night show he’ll take over next year he’s obviously “thrilled” to be succeeding David Letterman. The Comedy Central host told Letterman on CBS’ “Late Show” on Tuesday, April 22, 2014, he’s going to do whatever Letterman has done. (AP Photo/CBS, John Paul Filo) MANDATORY CREDIT, NO SALES, NO ARCHIVE, FOR NORTH AMERICAN USE ONLY