1) IKU is a Japanese artist produced by Kazuya Takase. She debuted in 2008 with the double A-side single 音のない夜空に/木の芽風 (Oto no Nai Yozora ni / Konome Kaze). Konome Kaze was used as the 4th ending to the anime ハヤテのごとく(Hayate no Gotoku!). Though she is produced by Kazuya Takase, she is not a member of the I've Sound circle. 2) Iku is the Finnish band with a larger carrier formed in 1986 and debuted allready in late 1987. Then Iku Tukiainen took a break from Kinsky and Jussi Hakulinen ended a decade of involvement in the band Yö.