Sister Sledge is an American musical group formed in 1971, originally consisting of four sisters: Debbie, Joni, Kimberly, and Cynthia Sledge. They gained fame in the late 1970s with their hit songs, including the iconic disco anthem "We Are Family," which became a symbol of unity and celebration. The group was produced by the renowned music duo Nile Rodgers and Bernard Edwards of Chic, contributing to their distinctive sound. Sister Sledge's music blends elements of disco, soul, and R&B, and they have released several successful albums throughout their career, earning a lasting legacy in the music industry.