IZ can refer to multiple bands and artists. For the Kazakh folk music group, see IZ乐队. For the Hawaiʻian singer, see Israel Kamakawiwoʻole. IZ (아이즈, pronounced "eyes") is a four-piece South Korean boy band formed by Music K Entertainment in 2017. They debuted on August 31, 2017, with “All You Want”. The group is composed of Jihoo, Woosu, Hyunjun, and Junyoung.