Hiroyuki Sawano
On August 18, 2016, Aimer announced her special 4th studio album "Daydream" to be released on September 21 that features collaboration songs between her and popular artists such as Taka (ONE OK ROCK), Yojiro Noda (RADWIMPS), TK (Ling tosite sigure), chelly (EGOIST), Takahito Uchisawa (androp), Hiroyuki Sawano, Sukima Switch, and Mao Abe. Taka additionally produced four new songs for this album, while TK provided two. Also includes the ending theme of "Kabaneri of the Iron Fortress" (anime) made in collaboration with chelly (EGOIST) and Hiroyuki Sawano and more for 13 tracks total. The album was released in three versions: a limited CD+Blu-ray (Type-A), a limited CD+DVD edition (Type-B), and a regular CD only edition. The song "Falling Alone" was used as lead track and was previously released as her 10th digital single as advance of the album.