The Tonight Show Starring Jimmy Fallon Season 4 Arnold Schwarzenegger, Elle Fanning, Childish Gambino Season 4, episode 56 Arnold Schwarzenegger, Elle Fanning, Childish Gambino December 14, 2016 45 min Previous episode Michael Fassbender, Jon Glaser, Niall Horan Next episode Casey Affleck, Sienna Miller, Solange