September 21, 2019 12:30 am 'Tonight': The Longest Pong Host Jimmy Fallon tests how long he can keep up The Roots’ Tarik Trotter’s “longest pong” by hitting a ping pong ball with a paddle without letting it fall as he goes through his show prep routine. US & World Videos 3:27 May Day demonstrations planned, Gaza war protests continue across Bay Area 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 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug