CBS viewers will get a glimpse of the incoming “Late Late Show” host, James Corden, on Friday when the British thesp makes his first visit to “The Late Show with David Letterman.”

Corden is set to take over the helm of Letterman’s 12:35 a.m. companion show on March 9. Current “Late Late Show” host Craig Ferguson is to sign off on Dec. 19 after 10 years behind the desk. Letterman is set to retire from his show sometime next year although the timing of his departure is still unclear.

Corden was a surprise choice by CBS to fill Ferguson’s shoes as the actor-host is little-known in the U.S. He’ll be on the big screen in December in the Disney feature rendition of the Sondheim musical “Into the Woods.”