Mary Weiss, who was the lead singer of the Shangri-Las hit No. 1 in 1964 with “Leader of the Pack,” extracting every ounce of passion and pathos available in a three-minute adolescent soap opera, died on Friday at her home in Palm Springs, Calif. She was 75. Her death was announced by the author and television writer David Stenn, who had been collaborating with Ms. Weiss on a stage musical about the Shangri-Las. Produced and co-written by Shadow Morton, the single featured call-and-response vocals, full-tilt teenage angst and motorcycle sound effects. It was excessive and melodramatic, requiring acting as much as singing, but Ms. Weiss sold it with her yearning performance.

---

Persons: Mary Weiss, David Stenn, Weiss, — “, Shadow Morton Organizations: “ Locations: Palm Springs, Calif