The Late Show with Stephen Colbert Season 1 Christian Slater, Josh Radnor, Iggy Pop Season 1, episode 76 Christian Slater, Josh Radnor, Iggy Pop January 21, 2016 45 min Stephen welcomes actors Christian Slater and Josh Radnor and musician Iggy Pop. Previous episode James Spader, Brandon Marshall, Sarah Koenig, Rev Run Next episode Steven Tyler, Gaby Hoffmann, Låpsley