VOCAL GROUPS

http://en.wikipedia.org/wiki/Gene_Puerling
http://www.singers.com/arrangers/genepuerling.html

http://cbvocalgroups.blogspot.com/2007/11/hi-los.html
http://www.thehi-los.com/
http://www.cherryred.co.uk/el/artists/hilos.htm

http://www.fourfreshmen.com/
http://www.answers.com/topic/the-four-freshmen
http://en.wikipedia.org/wiki/The_Four_Freshmen

http://www.clarkburroughs.com/
http://www.answers.com/clark%20burroughs

http://www.singers.com/jazz/singersunlimited.html
http://en.wikipedia.org/wiki/The_Singers_Unlimited
http://www.a-cappella.com/category/singers_unlimited

http://www.rosemaryclooney.com/

http://www.gigsalad.com/Singers

http://www.singers.com/arrangers.html