That Thread on Blue-eyed soul singers went so well (and a big shout-out to all contributors!) that I thought I'd come back with acapella groups.
First up is something special--a large group from Slovenia:
http://www.youtube.com/watch?v=09LQlfMmW7s Now some Rick Rollin':
http://www.youtube.com/watch?v=h8WiyX21A1c http://www.youtube.com/watch?v=46e85PzCnAoWouldn't be a complete listing without these groups:
http://www.youtube.com/watch?v=z5MkNOXSdkA http://www.youtube.com/watch?v=d51r_mQPJw0 >> unearthly falsetto
http://www.youtube.com/watch?v=LwuvV05iHpkYou just don't know where vocal harmony might break out:
http://www.youtube.com/watch?v=Kj70nDhuXvU http://www.youtube.com/watch?v=WouUK5x8sBMThis'll do it for now.