[Margaret Pilkington]

All I can say is, that you are far too young to be able to make a judgement about the best song of the 20th century.
According to your profile you are 15.....so you haven't spent enough time in that era to be able to judge, and the time you were in that era, you were probably wiping baby milk from your mouth(or at least your mother was).
If you really want to contribute to this great forum(and be taken seriously) you could start by stop asking all these irrelevant(juvenile) questions.

You remind me very much of someone from the past, whose name escapes me now...but caused a funny buzzing sound every time he appeared in his various guises.
He also flooded the site with silly irrelevant questions.
Not that I am saying that is YOU....but just that you remind me of him.