How Great Thou Art, the barbershop edition - one man of many voices, http://www.youtube.com/watch?feature=player_embedded&v=dxCRIF0m79w
Of the Father's Love Begotten (acapella) http://www.youtube.com/watch?v=cOF9JLJkPis
3 young voices, National Anthem, a capella - http://www.youtube.com/watch_popup?v=QEGlsHS6tSQ