At only 21-years-old she has built up her brand Kylie Cosmetics into an empire. There was lip-kit mania over her signature product that became a must-have for every make-up junkie out there. At first, the lip-kits were only available for sale online or at pop-up shops that people were willing to sleep outside for access to. Her money mile-stone came last November when she signed an exclusive distribution deal with make-up retailer Ulta for over 1,000 of their stores. Following the deal, Kylie Cosmetics jumped up a 9% revenue. Forbes estimates the company is worth at least $900 million.