Jimmy Fallon September 21, 2017 4:23 am ‘Tonight': Fred Armisen's Noise Remix Jimmy Fallon has Fred Armisen record some noises, like laughs and gasps, and uses the Samplebot app on his iPad to remix them into a song. 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