This isn't really a cover; it's a complete reimagining. You may never think of Depeche Mode's Enjoy the Silence the same way again.
Watch his explanation first before you listen to the performance.
S:t Jacobs Ungdomskör - Workshop with Eric Whitacre: Enjoy the Silence
https://youtu.be/Ro8PPimKHTE
Enjoy the Silence (arr. Whitacre)
Eric Whitacre Singers
https://youtu.be/JHb2kcpwlrc
^ I would subtitle Whitacre's version:
Enjoy the Dissonance
Really, he makes this gut-wrenching. Few modem composers handle tension so skillfully.