I am pretty sure Marni Nixon played Eliza Doolittle live on stage in Los Angeles in the mid-1960s. Marni does have a technically flawless voice, but if you listen to the Gershwin album she recorded you will hear that she doesn't have a distinctive way with lyrics or interpretative abilities. I'm sure this has something to do with why she herself never had much of a career as a musical actress.
A few years ago I heard an interview with Marni Nixon on NPR (I think with Leonard Lopate) and she said Natalie always knew that one of the songs was too difficult for her and that it would have to be dubbed. Marni could not remember if it was I Have A Love or One Hand, One Heart.
Natalie does all of her own singing, in her perfectly pleasant when unchallenged voice, in Gypsy, Penelope and The Affair. She is understandably dubbed in West Side Story, The Great Race (apparently at Mancini's insistence) and Inside Daisy Clover, where a great voice is required. Outtakes of her singing You're Gonna Hear From Me and The Circus Is A Wacky World are a lot closer to the mark than her WSS takes, but she still couldn't manage the higher, brassier notes, and the discrepancy between her voice and Jackie Ward's in the blended recordings was just too obvious. Her outtakes from that film were a hell of a lot more passionate than the final tracks sung by Jackie Ward, however.
Updated On: 12/22/13 at 03:32 PM