personnel helloween michael kiske - vocals , acoustic guitar michael weikath - guitar roland grapow - guitar markus grosskopf - bass ingo schwichtenberg - drums guests axel bergstedt - conductor , church organ in '' i believe '' children 's choir of the orchestra '' johann sebastian bach '' , hamburg in '' i believe '' - violin it is an interesting footmark , that three of the children of the children 's choir are aminata , jazz and sophie from black buddafly , who had been 12 and 13 years old , when they sang for chameleon .