Jimmy Fallon took up the role of Neil Young last night when he helped Crosby, Stills and Nash cover a song by hip-hop artist Iggy Azalea on The Tonight Show. The comedian and the trio worked through the folky rendition of the Azalea’s hit “Fancy” before CSN delved into their own “Teach Your Children” and “So Begins the Task” later in the night.

Crosby, Stills and Nash will kick off a three-night run at New York City’s Beacon Theatre tonight.