Staff Sgt. Ty Carter; Hayden Panettiere; In the Valley Below Medal of Honor recipient Staff Sgt. Ty Carter; from "Nashville", actress Hayden Panettiere; musical guests In the Valley Below. Details Casts Title Staff Sgt. Ty Carter; Hayden Panettiere; In the Valley Below Genres Talk Comedy Release Date 2013-08-28 Episode Runtime 01 Hours 03 Minutes Season Number 20 Episode Number 116 Production Companies Worldwide Pants, CBS Entertainment Productions, CBS Productions, CBS Studios David Letterman Self - Host Paul Shaffer Self -Musical Director Alan Kalter Self - Announcer (voice)