Ryan Gosling, Gomez Dave participates in a Summer Toy Demo and welcomes actor Ryan Gosling and musical guest Gomez. Details Casts Title Ryan Gosling, Gomez Genres Talk Comedy Release Date 2011-07-13 Episode Runtime 01 Hours 03 Minutes Season Number 18 Episode Number 100 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)