Singer and songwriter Leonard Cohen passed away this year, but he left behind a legacy of incredible music. Among his hundreds of songs, he is most notable for penning the classic track "Hallelujah" in 1984. Over the years, some of your favorite artists have put their own spin on the tune, including Pentatonix's recent version on their holiday album. If you're looking for that perfect track to play this season, look no further than these beautiful covers.