Beijing, May 6 (Youth.cn) - On May 4, 2025, in Dunhuang, Gansu, as twilight painted the Kumtag Desert gold, the Mingsha Sand Mountain, or the Singing Sand Dunes, resonated with 10,000 voices during the "TikTok Sunset Choir Extravaganza," a flagship May Day event blending ancient acoustics with digital-age revelry. Artisanal fireworks burst overhead, while synchronized drones performed above the spring. Photo/CFP