“Hallelujah” is a song written by Canadian singer Leonard Cohen, originally released on his album Various Positions (1984). The a cappella group Pentatonix covered the song in the quintet’s 2016 album, A Pentatonix Christmas. On October 21, 2016, Pentatonix also released a music video for its cover. With the death of the song’s author Leonard Cohen on November 7, 2016, the Pentatonix’ version received charted on a number of international charts.

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