the fact some people have the nerve to throw in Gaga, Kim Kardashian or some other pop stars.
Queen Elizabeth is pretty known, Michelle Obama is also known but kind of local and if I'd have to choose a pop girl from the poll I'd say Madonna (or even Rihanna) but the rest is just laughable.
Angela Merkel also has much impact but is not known to everyone which shouldn't be a surprise because she's GERMAN and the Chancellor whose job it's not to be as famous as you can be and to collect sympathy points from the world.
I can't think of anyone else right now so I hopefully didn't forget someone.