Documented 1950s Yma Sumac's Sophie Gimbel Silk Evening Coat RobeDuring the 1950s, Yma Sumac was a singing superstar. She was known for her extreme vocal range, which was said to be 'well over five octaves'. She had tremendous style and combined the look of traditional Incan clothing with the high 1950's glamour of Hollywood for a look that was uniquely her own. When she passed away in 2008 most of her clothing ended up in the hands of her long time assistant Damon, and he eventually released most out for sale.