Speaking of the gospel according to Rev Al Green, this is one of my favorite gospel songs:
http://www.youtube.com/watch?v=kIyQefMvl8g
Back to listening to the Soul Stirrers via youtube.
This is such an old group (1926 - present) but many people only know them since they brought in Sam Cooke. Sam Cooke handpicked Johnnie Taylor (who is defined as "an effective mimic of Cooke") before Cooke left the group to pursue secular music.