The Tonight Show Starring Jimmy Fallon Season 5 Steve Martin, Martin Short, Poppy Delevingne, Steep Canyon Rangers Season 5, episode 121 Steve Martin, Martin Short, Poppy Delevingne, Steep Canyon Rangers May 3, 2018 45 min Previous episode Savannah Guthrie, Hoda Kotb, Robert Irwin, Jaden Smith Next episode John Goodman, Zoe Lister-Jones, Josh Blue