In the 1960s, the Korean artists such as Shin Joong-hyun, and Patti Kim who previously performed for the U.S. army clubs reached out to the Korean public. In the mid-1960s, due to the influence of the legendary British group The Beatles, there was a rise of "group sound" in South Korea, for example, Add4 and the .  Add4, Korea's first rock group, was formed by Shin Joong-hyun in 1962 and produced Korea's first rock song, "The Woman in the Rain", which is a form of light rock reminiscent of the early Beatles. Shin Joong-hyun was so instrumental in the development of Korean rock music that he is regarded as the "godfather of Korean rock" in South Korea.