Three sisters start out singing in their church choir in Harlem in the late 1950s and become a successful girl group in the 1960s.

Philip Michael Thomas
as Stix

Irene Cara
as Sparkle

Lonette McKee
as Sister

Dwan Smith
as Delores

Mary Alice
as Effie

Dorian Harewood
as Levi

Tony King
as Satin

Beatrice Winde
as Mrs. Waters

Paul Lambert
as Moe Gerber

Joyce Easton
as Lee Gerber