David Letterman Self - HostDavid Letterman was 64 in Late Show With David Letterman - Season 18 - Will Ferrell, The Twilight Singers (Episode 59).
Birthday: Sat, Apr 12 1947
Paul Shaffer Self -Musical DirectorPaul Shaffer was 61 in Late Show With David Letterman - Season 18 - Will Ferrell, The Twilight Singers (Episode 59).
Birthday: Mon, Nov 28 1949
Alan Kalter Self - Announcer (voice)Alan Kalter was >> in Late Show With David Letterman - Season 18 - Will Ferrell, The Twilight Singers (Episode 59).
David Letterman
Paul Shaffer