December 10, 2014 5:39 PM EST

A cover of Leonard Cohen’s “Hallelujah” by singer-songwriter Peter Hollens is going viral, thanks to a stirring a cappella arrangement featuring Jackie Evancho.

Hollens appeared on season 2 of NBC’s The Sing-Off, and has been compared to Pentatonix, another group made famous by the a cappella competition show. Evancho, a 14-year-old soprano, has performed on America’s Got Talent and at the National Christmas Tree Lighting in Washington, D.C.

Below is Leonard Cohen’s original for reference:

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Write to Olivia B. Waxman at olivia.waxman@time.com.

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