Probably between the Queen of England (whoever is ruling England is probably always top 3 worldwide going back centuries) and Aishwarya Rai (at the very least she has a billion for sure) .
I'll edit to add Victoria Beckham just because David is extremely popular around the world and most people would probably know his wife. If you mention her in Europe, Africa, Asia, South America i'm thinking most people would have heard of her because of him (well, and the Spice Girls).
Michelle Obama has to be up there too.

Edited By: neoaddicted 04/23/2009 8:58 PM. Edited 1 times.