Barry Zito, Mandy Moore, Grandaddy Cy Young Award-winning pitcher Barry Zito stands on the roof of the Broadway Theater, throwing baseballs at the Ed Sullivan Theater windows. Later, Grandaddy performs ""Now It's On."" Details Casts Title Barry Zito, Mandy Moore, Grandaddy Genres Talk Comedy Release Date 2003-07-16 Episode Runtime 01 Hours 03 Minutes Season Number 10 Episode Number 165 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)