George "Shadow" Morton, the producer who gave girl-group the Shangri-Las their distinctive sound, has died, at age 72.
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Grammy Award winner Janis Ian announced the sad news to fans via Facebook on Friday, posting a photo of herself with Morton from 1967.
He produced "Leader of the Pack" for the Shangri-Las and Ian's "Society's Child." Morton's other hits included Iron Butterfly's "In-A-Gadda-Da-Vida" and Vanilla Fudge's "You Keep Me Hangin' On."