1) Marvin Gaye – 1983 NBA All Star Game
2) Whitney Houston – 1991 Super Bowl
3) The United States Military Academy choirs (combined) – 2004 Super Bowl
4) Jennifer Hudson – 2009 Super Bowl
http://youtu.be/S2HNH9orkTQ
5) Whitney Houston (again)
photo credit: JeepersMedia via photopin cc
