Hidden Valley is a country music band led by Wu Di, the lead vocalist and double bass player who used to be part of the rock band Rolling Bowling. He has a deep appreciation for roots music, which heavily influences their sound. The band's lineup also includes Zhang Xin, a guitarist from the country rock band OGMC, drummer Wang Liuchen, Liu Yiying, an autoharp player and vocalist from the women's band Sune Checker, and Gao Yuan, a skilled violinist. Together, they create a captivating country music experience.