Crispin Glover on David Letterman tried to pull an Andy Kaufman before Joaquin Phoenix

IS this CRISPIN GLOVER , an act, both, is he on drugs too...?!
Well Andy Kaufman is the TOP and now Joaquin is the bottom...so HEEEEEEEERE'S CRISPIN:



Crispin makes a 2nd appearance:



Crispin Glover talks in an interview 20 years later about his Letterman Appearance:



. . . and HERE IS "Actor Turned Wannabe Rapper" Joaquin Phoenix doing the same thing but somewhere in the shadows lurks Casey Affleck with a video camera to turn into a FILM!