20-year-old is sole owner of $800B company
                                
                                
                                    (Newser) -
                                    Kylie Jenner is known as a reality TV star and a model. But the Keeping Up With the Kardashians star is, at, 20, also an extremely successful businesswoman and is on course to become the youngest self-made billionaire ever, reports  Forbes , which estimates her current fortune at $900 million. Most...