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Lesser-Known Hollywood Siblings

30 of 44

Frank Stallone

Famous sibling: Sylvester Stallone

He is down, but he is far from over. Sly's little brother hasn't really done much since the '80s, but seeing as how this picture was taken at a "Frank Stallone concert" just two years ago, it's clear people still want some of his sweet, sweet crooning. —XFINITY Entertainment Staff (Photo by Robert Cianflone/Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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