hmm I wonder if it could have something to do with the famous words uttered by the journalist Henry Morton Stanley, Dr. Livingstone I presume? Since the song que sera sera was composed by Livingstone and Evans? And Livingstone was Scottish? as is Susan Boyle? Though i can't really fit Simon Cowell into the whole thing maybe i should add Stanley was send off to find Livingstone as you could say Cowell is supposed to find the talent of Britain, aka Susan Boyle? And Livingstone was looking for the source of the Nile but discovered the Kongo instead...
though i might be way of my mark here as well