I would not want to drop certain "myths", however, I came across the official channel of Viani, from what he says that he was only a producer and arranger of this song ... You see how he writes in the comments of the song ...
I knew it all songs with the signing of Gigi Dag, are born out of his hands, but sometimes ... (but i imagine some well for other artists from the big "name" ... it's all image and marketing)