When did you start singing folk songs after happiness?

The third question. "Happy Departure" is a music travel reality show jointly produced by Mango TV and Daqian Pictures. In the program, Chen Chusheng, Land Rover, Awakening, Ah Fu, Yue, and Bird gathered to start a new journey. In the third stage of the program, six people, including Chen Chusheng and Land Rover, suddenly decided to sing folk songs together and pass through the mountains when they were going to their mission destination. They sang Mountain Scenery, and all six of them sang very well.