if it wasn't for Cortese, there would be no Liebherr money.
as for the rest of it,thats just your opinion. others obviously disagreed & sung it. if its as crap as you think it is it won't get another rendition.
i also like "my old man said..." & have "pompey fan on a string" as my ringtone, just to dismiss any preconceived idea's you may have.