Extra Terrestrial Biological Entities

Extra terrestrial Biological Entities is the sole studio album of the Japanese J-pop band Egoist, released on September 19, 2012, by Sony Music. The album contains 12 music tracks written by Ryo of Supercell and sung by Chelly, who also wrote the lyrics for the song "LoveStruck". Two of the tracks were previously released on two of Egoist's singles. Two different editions of the album were released: a regular CD version and a CD+DVD limited edition. Extra terrestrial Biological Entities peaked at No. 9 on the Japanese Oricon weekly albums chart.

Three of the songs were used as theme songs for various media: "Departures (Anata ni Okuru Ai no Uta)" and "The Everlasting Guilty Crown" were used as theme songs for the 2011 anime television series Guilty Crown, and "Planetes" was used as the ending theme to the original video animation included with the visual novel Guilty Crown: Lost Christmas.