Data from Meituan, one of China's largest online retail companies, shows that during the Mayday concerts in Shenzhen, sales of alcoholic beverages in the surrounding area doubled from the usual numbers. Beer and wine were the most popular, with sales rising by 120 percent and 167 percent, respectively. Outside the venue, orders for sunscreen, mosquito repellent, and other products rose by 90 percent, while fan sales doubled and sales of Yakult also rose twofold.

The inventory of related products in nearby warehouses sold out two hours before the concert started, and emergency stock replenishment was needed to meet the subsequent demand.

Feng Rao, director of the Mafengwo Tourism Research Institute in Beijing, said that experiencing the local culture, visiting popular attractions and enjoying local cuisine during performance intervals are popular activities among young people, boosting the use of local transportation, accommodations, dining and shopping.

"I have come to Shenzhen for the pop concerts several times this year because of an incredible experience I don't want to miss," said Li Xiaolan from Pingtan, Fujian province.

"The city has become a hot spot for concerts, and I couldn't resist the opportunity to see my favorite artists perform live. The energy and excitement in the air are palpable, and being surrounded by fellow fans who share the same passion is truly exhilarating."