In 1931, the first sound film was made in China in a cooperation between the Mingxing Film Company and Pathé. The film industry took advantage of the sound era and engaged singers for acting and soundtrack roles, and Li Jinhui's Bright Moonlight Song and Dance Troup became the first modern musical division to be integrated into the Chinese film industry when it joined Lianhua Film Company in 1931. Amongst the best-known of the singer-actress to emerge in the 1930s were Zhou Xuan, Gong Qiuxia, and Bai Hong. Although later singing stars need not also have an acting career, the close relationship between the recording and film industries continued for many decades. Later Yao Lee, Bai Guang, Li Xianglan, Wu Yingyin also became popular, and collectively these seven stars became known as the "Seven Great Singing Stars" of the period. Other notable singers of this period include Li Lihua and Chang Loo (張露). In 1940 Yao Lee recorded "Rose, Rose, I Love You" which later became the first Chinese pop song to be covered by Western singers that was a hit.