Charlie Sheen, John Mayer During CBS Mailbag, Alan has an awkward reunion with the first girl that ever kissed him, and "Ah-nuld" (Gerard) has an enlightened conversation with Dave. Later, Charlie Sheen promotes "Two and a Half Men." Details Casts Title Charlie Sheen, John Mayer Genres Talk Comedy Release Date 2003-10-10 Episode Runtime 01 Hours 03 Minutes Season Number 11 Episode Number 25 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)