KiiiKiii's song "404 (New Era)" has reached the top spot on a Billboard list of best K-pop songs of 2026. The song has also achieved success on other charts, including topping the Melon weekly chart and Korean charts for two weeks. The song's chart performance has been reported by multiple outlets, with some also noting the success of other K-pop groups, although it is unclear how they rank in relation to KiiiKiii's song.