Jimmy Fallon Sings Iggy Azalea’s ‘Fancy’ As Neil Young [VIDEO]Jimmy Fallon Sings Iggy Azalea’s ‘Fancy’ As Neil Young [VIDEO]Neil Young (aka Jimmy Fallon) sings Iggy Azalea's 'Fancy' with a little help from Crosby, Stills & Nash.Brady LaRockBrady LaRock