Joni, Kim, Debbie and Kathy Sledge were taught how to sing by their grandmother Viola Williams, a former lyric soprano opera singer and protégée of civil rights leader Mary McLeod Bethune, the sisters recounted in various interviews.
“When we were very little, our grandmother, who played the piano and sang, used to take us up to the keyboard and say ‘sing.’ She’s the one who taught us how to properly use our voices,” remembers Kim Sledge, in an interview with Philadelphia Tribune. “She was a tough task master and taught us discipline. But we loved to sing so we didn’t mind at all.”
With their voices in sync, Sister Sledge was born and the sisters launched into superstardom. But no one could prepare them for how life in the spotlight would change their lives.