- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S20E111
Episode: Louis C.K.; Hugh Evans; John Legend
Air Date: 2013-08-20
Overview
Comedian and star of "Louie", Louis C.K.; from The Global Citizen Festival, humanitarian Hugh Evans; musical guest John Legend.