In the past three years, China's live-streamed entertainment has gone from a blip to a booming billion-dollar industry. (REUTERS/Thomas Peter) The entertainment can take different forms — like interactive gaming or online marketplaces with real-time salespeople — but at the heart of this internet phenomenon are young girls chatting casually from the comforts of their pink bedrooms to an audience of millions about life, love, and their favorite makeup and beauty products.