4: Song excerpts from covers of “Hallelujah” by Daniel Kahn, Jeff Buckley, and Pentatonix

Source: 

Sources: Buckley, Jeff. Grace. Columbia Records. 1994; Kahn, Daniel. “Leonard Cohen’s ‘Hallelujah’ - in Yiddish” YouTube video, 4:42. Posted November 9, 2016. https://www.youtube.com/watch?v=XH1fERC_504; Pentatonix. “A Pentatonix Christmas.” RCA Records, 2016.