“It’s the modern-day reincarnation of the beauty parlors that provided weekly wash-and-sets to America’s grandmothers 60 years ago, except now there’s free champagne and Ariana Grande on the speakers. Leading the charge is a company called Drybar.” Not all fast-growing companies are about VR or AI. Some of them are about good old fashioned blow outs. Buzzfeed’s Sapna Maheshwari on the hot air millionaires.