Leonard Cohen’s “Hallelujah” gets a luminous, Pentatonix-style arrangement from the U.S. Air Force Band’s Singing Sergeants, a crowd favorite from summer tours to the White House. Their layered ...

Watch a vocal coach and songwriter react to Pentatonix’s stunning rendition of Hallelujah. We break down their harmonies, vocal arrangements, and the emotional delivery that makes this performance so ...