Tonight Show With Jimmy Fallon December 20, 2019 3:56 am ‘Tonight': ‘Sesame Street' 50th Anniv. Rap With Fallon, Trotter In honor of the 50th anniversary of “Sesame Street,” Jimmy Fallon and Tariq Trotter from The Roots perform a rap with Elmo, Big Bird and friends. US & World Videos 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 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 1:49 New guidelines say women should be screened every other year for breast cancer starting at 40