career formed in may 1973 by tony o'malley and terry stannard , ex-members of the pop group arrival , kokomo 's ten-piece line-up became : dyan birch ( vocals ) , frank collins ( vocals ) , paddy mchugh ( vocals ) , tony o'malley ( keyboards , vocals ) , alan spenner ( bass ) , neil hubbard ( guitar ) , mel collins ( saxophone ) , jody linscott ( percussion ) , terry stannard ( drum ) and jim mullen ( guitar ) .