Jimmy Fallon December 19, 2018 2:29 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. Local 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name