ZABADAK is a Japanese musical group formed in 1985 by Tomohiko Kira (吉良知彦), Yôko Ueno (上野洋子), and Katsushi Matsuda (松田克志). After the removal of Matsuda in 1987, Ueno left the group in 1993 and Kira continued under the name ZABADAK as a solo artist until March 2011, when his wife, vocalist and multi-instrumentalist Kôko Komine (小峰公子), joined the band. The sound of ZABADAK has been strongly influenced by both Celtic and progressive music.