Ключевые слова: 1617 years, 1819 years, 2024 years, 2529 years, 3539 years, 4044 years, arts culture and entertainment, band, beijing, caucasian ethnicity, celebration, china, chinese ethnicity, closeup, color image, communication, concert, connection, event, excitement, fan, holding, horizontal, human body part, human hand, illuminated, indoors, mature men, medium group of people, mid adult men, mobile phone, music, nightclub, nightlife, one person, performance, photo messaging, photographing, photography, photography themes, selective focus, smart phone, some under 18, technology, teenage boys, togetherness, unrecognizable people, wireless technology, young men, young women, youth culture,