"New" - THE COMMITMENTS - Mustang Sally - "Backing Track At Soundback"

http://www.soundback.co.uk/ will be featuring a backing track each day. Today's song and featured backing track is "Mustang Sally" by " The Commitments"

http://www.soundback.co.uk/THE-COMMITMENTS-backing-tracks/Mustang-Sally/1507.php

Two questions here: 1st who was the artist that made this song famous prior to the Commitments. 2nd apart from a car what else was a Mustang