Jimmy Fallon December 19, 2018 3:29 am ‘Tonight': ‘I Wish It Was Christmas Today' With Ariana Grande Jimmy Fallon reunites with Horatio Sanz, Chris Kattan and Tracy Morgan to perform their SNL holiday classic, “I Wish It Was Christmas Today,” with special guest Ariana Grande. US & World Videos 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 2:28 King Charles returns to public duties amid cancer diagnosis 3:10 Nicole Kidman gushes over family's support at AFI honor 1:39 Benny Blanco talks falling in love with Selena Gomez