In the 1960s, while America was in the throes of race riots, five people from diverse backgrounds came together in Philadelphia to create a new sound: Philly Soul. Its home, Sigma Sound Studio, was a place that drew Chubby Checker, The O'Jays, Stevie Wonder and many more. This film tells its amazing story.
Cast

Patti LaBelle
Self

Johnny Mathis
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Bobby Rydell
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Daryl Hall
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John Oates
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DJ Jazzy Jeff
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John Legend
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Kenny Gamble
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Otis Williams
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John Madera
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Dennis Wilan
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Don Murray
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Leon Huff
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Joe Tarsia
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Christian McBride
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The O'Jays
Unknown
Jerry Blavet
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Bunny Sigler
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Arthur Stoppe
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Peter Humphreys
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Todd Rundgren
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Earl Young
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Dee Dee Sharp
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TJ Tindall
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Dana Creed Epstein
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Ava Elise Cherry
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Thom Bell
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