Jimmy Fallon September 21, 2019 4:31 am 'Tonight': Chrissy Metz and Jimmy Fallon Improvise a ‘This Is Us' Theme Song “This Is Us” Actress Chrissy Metz give hints about director M. Night Shyamalan’s cameo in season 4 and improvises a theme song for the show with host Jimmy Fallon. Local 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:59 Smart devices make accidental 911 calls, emergency communications centers say 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