YOASOBI is a Japanese music duo formed in 2019, pairing Vocaloid producer Ayase with singer-songwriter Ikura. Their concept is adapting short fiction into pop songs, and their debut single Yoru ni Kakeru became a massive streaming hit in Japan during 2020. They broke globally in 2023 when Idol, the opening theme for the anime Oshi no Ko, topped charts worldwide and sparked countless dance and edit videos. Their tracks now circulate widely as short clips, and fans reuse excerpts like this one as background music for fan edits, AMVs and montages across social platforms.