YOASOBI are a Japanese duo formed in 2019, made up of producer Ayase and singer Ikura. The project began with songs adapted from short stories posted on the Monogatary website, turning fiction into pop tracks. Their debut song Yoru ni Kakeru became a major hit in Japan in 2020, and later releases, including the 2023 anime opening Idol, brought them a much wider international audience. Short excerpts of their music now circulate widely online, shared by fans for edits, covers, remixes and clips that borrow the duo's distinctive emotional and high energy style.