British actor Tom Hiddleston gave a surprise performance in Nashville, Tennessee Saturday night after a premiere of his upcoming Hank Williams biopic, I SAW THE LIGHT, hitting theaters in March 2016.
In the episode, Norton pointed out that Hiddleston is known for doing impressions of co-stars, so Hiddleston pulled out his best version of Woody Allen, Christopher Walken, Al Pacino and finally, Robert De Niro. Check out the performances and De Niro's reaction below!