George 'shadow' Morton, the producer who gave girl group the Shangri-Las their distinctive sound, has died, aged 72.

Grammy Award winner Janis Ian announced the sad news to fans via on Friday (15Feb13), 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.