CREDENTIALS: “Rapper’s Delight” (The Sugarhill Gang) Sylvia Robinson’s story is improbable. It’s the kind of thing that’s rightfully being made into a movie: The woman from the Dirty Dancing song teams up with a mobster and a kid from a pizza parlor to—by a combination of timing, luck, forethought, and stolen lyrics—start a revolution. Robinson may have ended up as “one of the most reviled businesspeople in hip-hop,” but her story didn’t start that way. Best known at the time for singing “Love Is Strange,” she was a music business lifer who wanted to start a new label with her husband Joe, with a loan from notorious music biz gangster Morris Levy. In the summer of 1979, she was at a party at the uptown nightspot Harlem World when she saw Lovebug Starski playing records and exhorting the crowd in rhyme. “A spirit said to me, ‘Put a concept like that on a record and it will be the biggest thing you ever had,’” she told