Debbie, Joni, Kathy, and Kim. Four sisters from the soul city of Philadelphia, Sister Sledge signed to Atlantic in 1974, while the group members were still in school. A few early singles charted in the U.K., then, in 1979, they teamed with Chic's Nile Rodgers and Bernard Edwards—a match made in disco heaven. These ten original recordings—all seductive grooves with big-city glamour—will turn your living room into a bumping, hustling dance floor.