Q:What type of details about sister sledge can be gathered from the following bio? Bio: sister sledge is an american musical group from philadelphia , pennsylvania . formed in 1971 , the group was originally composed of sisters debbie , joni , kathy and kim sledge . with kathy leaving in 1989 the group have since operated as a trio -lrb- with kathy occasionally re-joining for one-off performances and several releases in the 1990s -rrb- . having enjoyed marginal success in europe during the middle of the decade , mainstream success was achieved when breakthrough album '' we are family '' was released in 1979 . symbolizing strong family values , the siblings became global superstars at the height of the disco era . the group is mostly known for the anthem , '' we are family '' and hit songs '' he 's the greatest dancer '' , '' lost in music '' , their version of '' my guy '' , and '' frankie '' . still performing energetic stage shows and producing music today , sister sledge have won in excess of 100 awards and have performed in six of the world 's seven continents .
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