0

Alan Paul

American singer

1

Anonymous 4

American acapella quartet

2

Bobby McFerrin

American jazz vocalist

3

Bounding Main

sea shanty vocal group

4

Cathedral Quartet

Former Southern Gospel Quartet

5

Club for Five

Finnish a cappella group

6

Die Prinzen

German band

7

Kraja

Swedish A capella folk quartet based in Umeå

8

Marcella Puppini

Italian singer

9

Maybebop

German a cappella vocal group

10

Oliver Gies

11

Pentatonix

American a cappella group

12

Peter Hollens

American singer

13

Sebastian Krumbiegel

German actor and singer

14

Seminaarinmäen mieslaulajat

Finnish choir

15

Straight No Chaser

professional a cappella group from Indiana, United States

16

Tagaq

Canadian singer and author.

17

Take 6

American a cappella gospel music group

18

The Fairfield Four

American gospel vocal group

19

The Manhattan Transfer

American vocal music group

20

The Puppini Sisters

British close harmony group

21

UW MadHatters

22

Van Canto

German a cappella metal band