Jeffree Star is opening his doors! The cosmetics mogul recently gave ET a tour of his makeup empire and shared some insight into his products and his future plans.ET's Denny Directo recently spoke with the 35-year-old YouTube superstar at his offices in Chatsworth, California, and he took cameras on a tour of his offices and his entire cosmetics company.Walking into what he refers to as the «archives,» which contains all the different cosmetics lines produced by his brand — and prototypes that