The Original Coaches on The Voice Joined Forces for a Poignant "Hallelujah" Cover

For Season 3 of The Voice, Coaches Blake Shelton, Christina Aguilera, CeeLo Green, and Adam Levine joined forces for an emotional rendition of Leonard Cohen's ''Hallelujah'' to honor those lost in the Sandy Hook Elementary School shooting. 

It was a poignant musical moment, with each singer showing reverence and love with their vocal delivery,  You can watch the performance, which originally aired on NBC in 2012, here. 

RELATED: Susan Boyle's Spellbinding Cover of "Hallelujah" Is a Total Revelation

Adam Levine, CeeLo Green, Christina Aguilera, and Shelton at the "The Voice" Season 5 Top 12 Red Carpet Event at Universal Studios Hollywood on November 7, 2013 in Universal City, California. Photo: Getty Images

What to know about ''Hallelujah'' by Leonard Cohen

Originally penned by Cohen for his 1984 album Various Positions, cover versions include those by Jeff Buckley, Rufus Wainwright, Susan Boyle, Kodi Lee, Pentatonix, Bob Dylan, K.D. Lang, Brandi Carlile, Willie Nelson, Chester Bennington, and more. 

RELATED: Kodi Lee's Stunning Cover of "Hallelujah" Will Give You Chills