Joni Sledge

Joan Elise Sledge, known professionally as Joni Sledge was an American singer–songwriter and music producer. She rose to fame in the 1970s as a member of the family vocal group Sister Sledge, one of the highest-selling female groups of the 1970s. Sledge sang lead on their US Top 10 songs “Lost in Music” and “Reach Your Peak”. In 1984, a remix of “Lost in Music” peaked at number 4 on the UK Singles chart and also earned a silver-certification by the British Phonographic Industry (BPI). She co-wrote and co-produced Sister Sledge’s ninth album African Eyes (1998). Sledge continued to tour and perform with the group throughout the years. Her final performance with Sister Sledge was in October 2016.

Biography summary from English Wikipedia.