Categories VideosVideo: Watch Jimmy Fallon Impersonate Neil Young Over Iggy Azalea’s “Fancy” 7 years ago view-show 609,444 Jimmy Fallon's a comedian with everything. He raps and sings and tells clean jokes. Iggy Azalea is a new rapper who also does stuff, I'm told. He makes her song a lot better by doing it in Neil Young's voice with his old band. Watch after the jump.