How much money do celebrities' estates make?

We've been pretty serious around here lately, so let's lighten up a bit. Attached is an article from http://www.forbes.com/ that shows (with lots of photos) how much money the estates of deceased celebrities make. Who do you think is at the top of the list? Michael Jackson, of course. And can you guess which cartoonist's estate makes more than John Lennon's? Click here to check out the article.