Facebook: Crosby, Stills & Nash reunite with Neil Young for a stirring rendition of Iggy A… Posted on July 8, 2014 by web Crosby, Stills & Nash reunite with Neil Young for a stirring rendition of Iggy Azalea's hit song, "Fancy." WATCH: https://www.youtube.com/watch?v=ortY6H5jkEw The Tonight Show Starring Jimmy Fallon’s Facebook Wall