Stephen Colbert on 'Late Show'; First look

David Letterman, left, with Stephen Colbert of "The Colbert Report,"... — David Letterman, left, with Stephen Colbert of "The Colbert Report," during a surprise visit on the "Late Show with David Letterman" on May 4, 2011 in Manhattan. Credit: AP / Worldwide Pants Inc.

By Verne GayApril 22, 2014

How will the once and future king of "Late Show," Stephen Colbert, appear when he arrives at this exalted place sometime in 2015? We get a hint tonight, when he appears on "Late Show with David Letterman" as .?.?. himself. And Himself doesn't look a whole lot different from his Alter Ego Self: Same voice, same tie, same wicked-fast wit.

Check out this clip that was just released.