Sister Sledge is an American vocal group from Philadelphia, formed by sisters Debbie, Joni, Kim, and Kathy Sledge. Rising to international fame in the late 1970s, they became icons of disco and soul with timeless anthems like *We Are Family* and *He's the Greatest Dancer*. Blending uplifting harmonies, infectious grooves, and messages of unity, their music defined an era and continues to resonate across generations. With chart-topping success and enduring influence, Sister Sledge remain symbols of empowerment, joy, and musical excellence.