A 53-year-old man was arrested for stalking and harassing pop superstar Rihanna by hand-delivering eerie letters to her SoHo pad, the Daily News has learned. Kevin Mcglynn was allegedly caught on video surveillance on three occasions this month delivering the unsettling missives to a Rihanna employee, according to court records.

In the twisted letters, he “repeatedly called her a b–ch,” and threatened to “bum (rush) in her apartment,” according to his criminal complaint. He also allegedly sent at least four letters to her in California, authorities said.

“The nature of these letters (is) confusing. They all do indicate a personal relationship, as I indicated before, that simply does not exist,” Assistant District Attorney James Vinocur told the judge.