Here is something from 1973 by one time famed background singer Claudia Lennear. She was recently featured on the Oscar winning documentary "Twenty Feet From Stardom". In the 60's and 70's Claudia sung backgrounds for everybody from Ike & Tina Turner to Joe Cocker.
This is a song from her 1973 album "Phew" and it is funky, soulful, bluesy and it rocks too! That studio had to be on fire when this was recorded because it indeed is smoking!