"Piece of My Heart" is a romantic soul song written by Jerry Ragovoy and Bert Berns, originally recorded by Erma Franklin in 1967. Franklin's single peaked in December 1967 at number 10 on the Billboard Hot Rhythm & Blues Singles chart in the United States.

Erma Vernice Franklin was an American gospel and soul singer. Franklin recorded the original version of "Piece of My Heart", written and produced by Bert Berns, in 1967, for which she was nominated for a Grammy Award. A cover version of the same song was recorded the following year by Big Brother and the Holding Company, with the lead vocal by Janis Joplin. Franklin was the elder sister of American singer/musician Aretha Franklin.