“Hallelujah” is arguably poet and singer-songwriter Leonard Cohen’s best-known song. Considered by many to be one of the greatest songs of all time, it was ranked No. 11 on CBC Music’s list of the 100 Best Canadian Songs Ever. “Hallelujah” failed to garner much attention when it was initially released in 1985, but became increasingly popular after various artists — most notably Jeff Buckley, k.d. lang and Rufus Wainwright — performed covers of it. Since its release, “Hallelujah” has been covered by over 300 artists and has been used in numerous movies and television shows.