Really superficial question but who would you say is the biggest 'star' to you.
Katie Price lol
The most famous must be either Madonna or Celine Dion. If that's what you mean with star?
I would lean towards Madonna because she still makes the paper, but the truth is both have a repertoire from which almost everyone has heard at least 1 song...
Everyone knows them (apart from maybe 70 years old and older). Maybe the younger generation knows Madonna better than Celine, but I don't think that she has been forgotten yet.