Yvonne Fair

Yvonne Fair (October 21, 1942 – March 6, 1994) started as a latter-day member of the re-formulated Chantels and the James Brown Revue
She signed to Motown Records in the early 1970s, her only album in 1975 called The Bitch Is Black, which was re-released on CD 2009 for the first time more than 30 years later.

Some tracks and remixes at soundcloud, discography at discogs and:
tracks and artists that sampled Yvonne Fair to listen to at whosampled

Ann Peebles

A diminutive singer with a powerful voice and an even stronger attitude Ann Peebles (born April 27, 1947) gained celebrity for her Memphis soul albums of the 1970s on the Hi Records label.

 Find many tracks at soundcloud , discography and a lot of listening at allmusic