Anyone remember Claudine Longet? She's a strong contender for all ten of the most annoying singers. Breathy whispery little girl oh-aren't-I-just-too-adorable-to-resist voice, which was so irritating that the only thing I had to resist was throwing the radio out the window. All overlarded with an exaggerated cutesy-pie French accent (when you compared how she sang with how she spoke). Makes some of today's vocal lightweights who get regularly criticised here sound like Ethel Merman.   

She was married to Andy Williams, but is now mainly remembered for shooting her live-in lover, a playboy skier, as he dressed after a shower. Williams remained touchingly loyal throughout the publicity-emblazoned legal proceedings, though they had parted years before. She was acquitted, largely due to the fumbling incompetence of those who mishandled vital evidence which could not then be used in the trial. From the ballistics angle alone I don't see how anyone can have honestly believed she didn't do it. She wound up spending a total of 30 non-consecutive days in jail, which she was allowed to choose and that she served in weekends. Story's in Wiki and probably a zillion other places online if anyone wants to know more - my personal fave is Mick Jagger's take on it. ("Now I threaten my wife with a gun / I always leave the safety on")

I managed to miss hearing Longet sing Electric Moon by Donovan. Eidelweiss was enough for me.