Unicorn (ユニコーン, Yunikōn) is a Japanese rock band, formed in 1986, consisting of Koichi Kawanishi (drums), Tamio Okuda (vocals, rhythm guitar), Isamu Teshima (lead guitar), Kazushi Horiuchi (bass guitar), and Yoshiharu Abe (keyboard, vocals). They reunited in 2009.Unicorn recorded the theme song for the Space Brothers anime for episodes 01-13, titled "Feel So Moon".

Source: Wikipedia (https://en.wikipedia.org/wiki/Unicorn_(Japanese_band))