Sanullim (often stylized as San Ul Lim) was a pioneering South Korean rock band formed in the 1970s by brothers Kim Chang-wan, Kim Chang-hoon, and Kim Chang-ik. Renowned for their raw, psychedelic sound and youthful energy, Sanullim reshaped the Korean music scene by blending fuzzy guitar tones, experimental arrangements, and poetic lyrics. Their debut album, *Vol. 1* (1977), is often hailed as a cornerstone of Korean rock. Despite lineup changes and decades of evolution, their influence continues to inspire generations of musicians across Asia and beyond.