Koen Wauters and Isabelle A go in duet. Know The Latest News. Koen sings on the new single of Isabelle. Moreover, Koens daughter Zita the clip is created. Never Alone is also a foretaste of a completely new album about two months to be ready. Isabelle had Koen asked myself. That said, to her surprise, yes, because he is not so keen to a lot of duets to do.