In his opening monologue, Jimmy Fallon thanked his audience for making it through the historic snowstorm.

“It is so cold, I watched the ‘Melania’ movie just to warm my heart,” the “Tonight Show” host cracked. “It’s so cold, President Trump got a space heater installed in his MRI machine.”

“It’s so cold …” jokes  before a surprise guest butted in to continue the monologue. (Watch the video below.)