"Encore" (アンコール, Ankōru) is a song recorded by Japanese music duo Yoasobi. It was released on January 6, 2021 as a single for promotion their first extended play The Book, through Sony Music Entertainment Japan under the name Yoasobi. The song was based on the short story Sekai no Owari to, Sayonara no Uta (世界の終わりと、さよならのうた, "End of the World, and the Song of Good-bye") by Kamina Minakami, which won the Yoasobi Contest Vol. 1, and also used for advertisement Google Pixel 5, Pixel 4a (5G).