Sister Sledge is an American musical group from Philadelphia, Pennsylvania, formed in 1971 and consisted of four sisters: Debbie Sledge (born July 9, 1954), Joni Sledge (born September 13, 1956), Kim Sledge (born August 21, 1957), and Kathy Sledge (born January 6, 1958). They are granddaughters of the former opera singer Viola Williams. The group is best known for their hit songs "We Are Family", "Lost In Music", "He's the Greatest Dancer", and "Frankie".
The members of Sister Sledge were born and raised in Philadelphia and began singing in local Philadelphia churches like Williams Temple CME and Second Macedonia Baptist Church. Their professional music career launched when they entered the UK Singles Chart in 1975 with "Mama Never Told Me". The young girl group released their first two albums, Circle of Love and Together in 1975 and 1977, respectively but, aside from scoring the Silver Prize at the 1975 Tokyo Musical for Gwen Guthrie's composition "Pain Reliever" and oft-recorded "Love Don't You Go Through No Changes on Me," Produced by Bert Deco and Tom Bell.
The group attained pop success with their next album: 1979's We Are Family. The album would become the group's best selling. Singles included "He's the Greatest Dancer" (#9 US, #1 R&B) and "We Are Family" (#2 US, #1 R&B), the latter song becoming their biggest hit. The album was written and produced by Nile Rodgers and Bernard Edwards of the group Chic.