Cameron Crowe hand-delivers a message from Joni Mitchell to Stephen. #Colbert #Biopic #JoniMitchell | The Late Show with Stephen Colbert

Judd Apatow knows his lesser-known masters of comedy! #Colbert #ProfessorIrwinCorey | The Late Show with Stephen Colbert

Tig Notaro honors her friend, Andrea Gibson, with a reading of their poem, "Tincture." #Colbert | The Late Show with Stephen Colbert

Joaquin Phoenix turns another year cooler! #Colbert #HBD #ColbertQuestionert #JoaquinPhoenix | The Late Show with Stephen Colbert

Sarah Paulson recalls an important lesson she learned from her dear friend, Diane Keaton. #Colbert #SarahPaulson #DianeKeaton | The Late Show with Stephen Colbert

To us, Emma Thompson is perfect. #Colbert #EmmaThompson #LoveActually | The Late Show with Stephen Colbert