[Wikipedia on Yma Sumac]: She adopted the stage name of Imma Sumack (also spelled Yma Sumack and Ima Sumack) before leaving South America for the United States. Her stage name was based on her mother's name, which was derived from 'ima shumaq', Quechua for 'how beautiful!', although in interviews at the beginning of her career she claimed it meant 'beautiful flower' or 'beautiful girl'.