Mark Bubb is a Killer Merch Owner + Jeffree Star Cosmetics CRO at Jeffree Star Cosmetics. Colleagues describe them as "Mark is one of the best multi-taskers that I know. Few people could manage as many brands with as much clarity, organization, and dedication as Mark does. He monitors his brands with a critical eye, while still remaining flexible and open to improvements. Mark is constantly suggesting new ideas and evaluating what is working, and what isn't. He has an extremely high-caliber work ethic, and welcomes challenges that would seem insurmountable to others. If I could use one word to describe him, it would be irreplaceable!"