Sister Sledge May 29, 2010

Sister Sledge is an American musical group formed in 1972 and consisting of four singers, all of whom are sisters: Kim, Debbie, Joni and Kathy Sledge. Their biggest success came in 1979 with the popular disco anthems 'We Are Family' (#1 R&B, #2 Pop in the USA) and 'He's the Greatest Dancer' (#1 R&B, #9 Pop in the USA).