Famous people visit Harvard all the time, but the university announced that two equally well-known, yet quite different, women would be visiting soon. JK Rowling will be speaking at commencement, and the Harvard Lampoon will honor Paris Hilton on February 6. You'd think that Harry Potter creator JK Rowling and socialite Paris Hilton would have nothing in common, but you'd be surprised … Let's start with the obvious. Both are blonde. Both have an......