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In 1979, four sisters from Philadelphia, Kathy, Kim, Debbie and Joni, took the world by storm when they released a disco anthem that celebrated their family. Decades later, Sister Sledge's hit "We Are Family" is still one of the most requested songs of all time! "We say it's going to be here when we're long gone," Kathy says.
Watch Sister Sledge close the show with rock and hip-hop legends 
Today, these sisters are working on a gospel album dedicated to their mother and encouraging a new generation of Sledge women. "What's so amazing is we have five aunts, five aunts in the first generation, five of us, and now we each have a daughter," Kathy says, "And there's a new Sledge group!"
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