Keeping tabs on who's dating whom is a full-time job, but somebody's got to take a stab at it, right? For the greater good/useless pop-culture knowledge of the people, we've put together a social register, if you will, beginning with Kim Kardashian and (somehow) ending with a Cyrus who's not Miley. Consider this the fun, famous-people version of Burke's Peerage.
We can't believe this happened either. Kim Kardashian (and her Fendi B bag) once dated Nick Cannon...