D'ailleurs pour citer wikipédia :
"In 2000, Square Enix employees Kenichiro Fukui and Tsuyoshi Sekito formed an experimental partnership to compose music for the video game All Star Pro-Wrestling in a rock style. After the game's success, the two continued to compose in the same style. In 2002, Fukui and Sekito decided to arrange some of the compositions of Nobuo Uematsu, the primary composer for the music of the Final Fantasy series. Uematsu, a fan of rock music, enjoyed these arrangements, and Fukui and Sekito asked him to join them in making a rock band. Declining at first due to feeling too busy with his composing duties and attempts to become a music producer with his Smile Please label, Uematsu agreed to join them in a single live performance as a keyboardist. At the performance, Uematsu felt a "mix of stage fright and excitement, [with] all the crowds cheering, the audience paying full attention", and decided to join the two in making a band; Fukui and Sekito had refused to start one if Uematsu was not involved as one of the musicians."
En gros ça dit que Fukui et Sekito ont d'abord formé un duo reprenant les compos d'Uematsu. Ils ont proposé à ce dernier de les rejoindre mais il a répondu qu'il était trop occupé avec son label. Il a cependant accepté de les rejoindre pour une unique performance en live et il a trouvé ça si cool qu'il est resté.