"A Smile in the World".

1. "A Smiling River" is a song written and composed by Zhu He and sung by Wenren Tingshu. An adapted dance became popular on the Internet.

2. Excerpts from the lyrics: When the rivers and lakes smile, the waves are surging, and the world of mortals is forgotten. What is enough to say that everything is gone. The sky smiles and never grows old, but the pride is gone. Drinking a cup of loneliness towards the moon.