Jimmy Fallon January 26, 2018 2:43 am ‘Tonight': Peter and His Heckler – ‘Don't Stop Believin' (With Will Ferrell) Peter (Jimmy Fallon) tries to sing “Don’t Stop Believin'” but keeps getting heckled by his heckler (Will Ferrell). US & World Videos 1:02 20% of nurses to leave field within 2 years 1:05 Marking construction safety week in Boston 20:19 Karen Read's attorney accuses witness of perjury at murder trial 5:31 Inside the takedown of Mass. catalytic converter theft ring 2:39 Bruins try not to ‘dwell on the past' ahead of Game 7 against Toronto Maple Leafs