This performance blew me away. I am a fan of a capella singing, but this group makes all the ones I’ve seen before look like barbershop quartets. There are no instruments of any kind in this performance, all the “strings”, “brass”, “keyboards” and “percussion” are created by the voices of the performers. No “autotune” was done, no synthesizer trickery, this is just a group of people creating harmony and beauty.
Words don’t do it justice, just watch and listen.