Donna Karan (or DK) is a famous fashion designer from New York City.  You may remember seeing clothing with DKNY on them.
Yes, I have.  A lot of famous Designers have their roots in NYC
She was a head designer at Anne Klein for 10 years before 1984.
Did you know her net worth is well over 500 MILLION ? Thats quite astounding for a woman :)
Yes. In 1984, she was given the chance to start her own business by the owner of Anne Klein, Takihyo LLC
Some items in her clothing line are quite colorful and fashionable.  I'm not sure if I would wear them though
She probably learned her fashion sense from her mother, who was a model and worked in designer Chester Weinberg's showroom.