David Letterman June 22, 2016 2:25 am ‘Tonight Show': Two Neil Youngs on a Tree Stump Host Jimmy Fallon sings about sitting on a tree stump and Neil Young, in the flesh, joins him in singing this lonely ode. Local 1:36 O.J. Simpson's cause of death revealed 2:36 Super dad makes Mario-themed obstacle course for son's birthday 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:59 Ellen DeGeneres jokes about being ‘kicked out of show business' 0:59 Paramedic involved in Elijah McClain's death sentenced to 4 years of probation