Hello Sleepwalkers (ハロー・スリープウォーカーズ), is a prominent Japanese alternative rock band that originated in Okinawa in 2008. Renowned for their high-energy performances and distinctive sound that seamlessly fuses rock with experimental influences, they garnered widespread acclaim for their rendition of Goya no Machiawase, the opening theme for the anime Noragami. After announcing a hiatus in November 2018, the band made a notable return to the music scene in October 2021.