Erma Franklin

Erma Franklin (March 13, 1938 – September 7, 2002) was an American gospel and R&B singer. She was the oldest daughter of Barbara (née Siggers) and the Reverend C. L. Franklin, as well as the elder sister of Aretha Franklin. Her best known recording was the original version of "Piece of My Heart", written and produced by Bert Berns, for which she was nominated for a Grammy Award.

source: Wikipedia